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NCERT Exemplar Class 10 Science Solutions Chapter 16 Management of Natural Resources

NCERT Exemplar Class 10 Science Solutions Chapter 16 Management of Natural Resources

Edited By Sumit Saini | Updated on Sep 09, 2022 04:03 PM IST | #CBSE Class 10th

NCERT exemplar Class 10 Science solutions chapter 16 helps understand the natural resources. The chapter describes how natural resources such as air, water, coal et cetera are getting affected and how they should be managed to avoid depletion. The NCERT exemplar Class 10 Science chapter 16 solutions provide exact and suitable answers to the student’s queries while studying the problems of NCERT Class 10 Science.

This Story also Contains
  1. NCERT Exemplar Class 10 Science Solutions Chapter 16-MCQ
  2. NCERT Exemplar Class 10 Science Solutions Chapter 16-Short Answer
  3. NCERT Exemplar Class 10 Science Solutions Chapter 16-Long Answer
  4. NCERT Exemplar Class 10 Science Solutions Chapter 16 Management of Natural Resources Important Topics:
  5. NCERT Class 10 Exemplar Solutions for Other Subjects:
  6. NCERT Class 10 Science Exemplar Solutions for Chapters:
  7. Features of NCERT Exemplar Class 10 Science Solutions Chapter 16 Management of Natural Resources:

These Class 10 Science NCERT exemplar chapter 16 solutions are complete in nature to make the students understand the concepts. NCERT exemplar Class 10 Science solutions chapter 16 are in accord with the CBSE Syllabus for Class 10.

NCERT Exemplar Class 10 Science Solutions Chapter 16-MCQ

Question:1

From the list given below pick the item that is not a natural resource
(a) Soil
(b) Water
(c) Electricity
(d) Air
Answer:(c)
Natural resources occur naturally within an environment that exists relatively undisturbed by a human, in a natural form. Electricity is not a natural resource as it is developed by humans.

Question:2

The most rapidly dwindling natural resource in the world is
(a) water
(b) forests
(c) wind
(d) sunlight
Answer:(b)
Forests are the most quickly diminishing natural resource on the planet. They are crushed aimlessly as they give crude material to different businesses, for example, wood industry, paper industry, sports industry, and so on

Question:3

The most appropriate definition of a natural resource is that it is a substance/commodity that is:
(a) present only on land
(b) a gift of nature which is very useful to mankind
(c) a man-made substance placed in nature
(d) available only in the forest
Answer:(b)
Natural resources occur naturally within an environment that exists relatively undisturbed by a human, in a natural form. A ‘natural resource’ is a substance/commodity of nature which is very useful to mankind. These are air, water, soil etc.
(a) These can be present anywhere, not necessarily only on land.
(b) These are a gift of nature which are very useful to mankind.
(c) These are not man-made substances.
(d) These can be present anywhere, not necessarily available only in the forest
Hence option (b) is correct.

Question:4

The main cause for abundant coliform bacteria in the river Ganga is
(a) disposal of unburnt corpses into water
(b) discharge of effluents from electroplating industries
(c) washing of clothes
(d) immersion of ashes
Answer:(a)
The fundamental cause for abundant coliform bacteria in the river Ganga is disposal of unburnt corpses into water. Coliform are the gathering of microbes discovered in human digestive organs whose presence in water demonstrates contamination by disease-causing microorganisms.
Hence option (a) is correct.

Question:5

The pH of water sample collected from a river was found to be acidic in the range of 3.5 – 4.5, on the banks of the river were several factories that were discharging effluents into the river. The effluents of which one of the following factories is the most likely cause for lowering the pH of river water?
(a) Soap and detergent factory
(b) Lead battery manufacturing factory
(c) Plastic cup manufacturing factory
(d) Alcohol distillery
Answer:(b)
Lead is a significant constituent of lead-acid battery utilized widely in vehicle batteries. The release of lead from battery fabricating processing plants can bring down the pH of river water.
Soap is a combination of a weak acid and a strong base, which results in a salt that is basic on the pH scale. It does not lower the pH of river water.
Similarly, Plastic cup manufacturing factory and Alcohol distillery does not lower the pH of river water
Hence option (b) is correct.

Question:6

The pH range most conducive for life of fresh water plants and animals is
(a) 6.5 – 7.5
(b) 2.0 – 3.5
(c) 3.5 – 5.0
(d) 9.0 – 10.5
Answer:(a)
The pH of the water body should be in the range of 6.5-7.5 for the survival of freshwater plants and animals. Below and above this range is harmful to aquatic life.
Hence option (a) is correct.

Question:7

The three R’s that will help us to conserve natural resources for long term use are
(a) recycle, regenerate, reuse
(b) reduce, regenerate, reuse
(c) reduce, reuse, redistribute
(d) reduce, recycle, reuse
Answer:(d)
The three R's that help us to conserve natural resources for long term use are reduced, recycle, reuse.
Reduce: This means less use of natural resources, e.g., save water by repairing leaky taps.
Recycle: This means a collection of materials like plastic, paper, glass etc., to make required things instead of synthesizing or extracting fresh plastic, paper, glass etc.
Reuse: Instead of throwing articles, (e.g., used envelopes) use them again. This is better than recycling because the recycling process uses some energy.
Hence option (d) is correct.

Question:8

Given below are a few statements related to biodiversity. Pick those that correctly describes the concept of biodiversity
(i) Biodiversity refers to the different species of flora and fauna present in an area
(ii) Biodiversity refers to only the flora of a given area
(iii) Biodiversity is greater in a forest
(iv) Biodiversity refers to the total number of individuals of a particular species living in an area
(a) (i) and (ii)
(b) (ii) and (iv)
(c) (i) and (iii)
(d) (ii) and (iii)
Answer: (c)
Biodiversity refers to the different species of flora and fauna present in an area. Hence statement (i) is correct and statement (ii) is incorrect.
It is greater in a forest due to the availability of plenty of resources. Hence statement (iii) is correct.
The total number of individuals of a particular species living in an area is represented as population and not biodiversity. Hence statement (iv) is incorrect.
Hence option (c) is correct.

Question:9

Among the statements given below select the ones that correctly describe the concept of sustainable development
(i) Planned growth with minimum damage to the environment
(ii) Growth irrespective of the extent of damage caused to the environment
(iii) Stopping all developmental work to conserve the environment
(iv) Growth that is acceptable to all the stakeholders
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (ii) and (iv)
(d) (iii) only
Answer:(a)
Sustainable development implies arranged development/planned growth with least harm to the climate. The growth of environment should not be harmful to the partners too. It ought to be worthy to them, e.g., if some trees have to be cut for different purposes, then harm/damage to the environment can be minimized by planting new samplings instead of cut trees.
Hence option (a) is correct.

Question:10

In our country, vast tracts of forests are cleared and a single species of plant is cultivated. This practice promotes
(a) biodiversity in the area
(b) monoculture in the area
(c) growth of natural forest
(d) preserves the natural ecosystem in the area
Answer:(b)
The practice of clearing vast tracts of forests and cultivating a single species of plant is known as monoculture. This devastates the biodiversity in the region as the number of species lower. It likewise upsets or disturbs the natural ecosystem in the area. Hence, it decelerates the growth of the natural forest.
Hence option (b) is correct.

Question:11

A successful forest conservation strategy should involve
(a) protection of animals at the highest trophic level
(b) protection of only consumers
(c) protection of only herbivores
(d) comprehensive programme to protect all the physical and biological components
Answer:(d)
Forest conservation strategy should involve exhaustive projects to ensure all the physical and biological components, (i.e., the ecosystem). In the event that living beings just at a specific trophic level are protected, the ecosystem would be disturbed, as the organisms at the lower trophic level would disappear quickly.
This will prompt circumstance where the organisms at all the upper trophic levels would die due to starvation.
Hence option (d) is correct.

Question:12

The important message conveyed by the ‘Chipko Movement’ is
(a) to involve the community in forest conservation efforts
(b) to ignore the community in forest conservation efforts
(c) to cut down forest trees for developmental activities
(d) government agencies have the unquestionable right to order destruction of trees in forests
Answer:(a)
The Chipko movement was a non-violent agitation in 1973 that was aimed at the protection and conservation of trees. The important message conveyed by the ‘Chipko Movement' was to involve the community in forest conservation efforts.
People’s participation can help in increasing forest as well as help in their conservation.
Hence option (a) is correct.

Question:13

In our country, there are attempts to increase the height of several existing dams like Tehri and Almati, dams across Narmada. Choose the correct statements among the following that are a consequence of raising the height of dams
(i) Terrestrial flora and fauna of the area is destroyed completely
(ii) Dislocation of people and domestic animals living in the area
(iii) Valuable agricultural land may be permanently lost
(iv) It will generate permanent employment for people
(a) (i) and (ii)
(b) (i), (ii) and (iii)
(c) (ii) and (iv)
(d) (i), (iii) and (iv)
Answer:(b)
The consequences of raising the height of dams are as follows:

  • The terrestrial flora and fauna of the area is destroyed completely.

  • It leads to deforestation and loss of biological diversity.

  • It also leads to the dislocation of people and domestic animals living in an area which causes various social problems. Significant farming area might be forever lost.

  • The people are not even given adequate compensation for their losses. This obviously leads to economic problems such as temporary unemployment for people.

Hence statements (i), (ii) and (iii) are correct.
Hence option (b) is correct.

Question:14

Expand the abbreviation GAP
(a) Governmental Agency for Pollution Control
(b) Gross Assimilation by Photosynthesis
(c) Ganga Action Plan
(d) Governmental Agency for Animal Protection
Answer:(c)
GAP stands for the Ganga Action Plan.
The Ganga action plan was, launched by Shri Rajeev Gandhi, on 14 Jan 1986.
The main objectives were:

  • 1. Pollution abatement

  • 2. Improve the water quality by Interception, Diversion and treatment of domestic sewage

  • 3. Prevent toxic and industrial chemical wastes from polluting and entering in to the river.

Question:15

Select the incorrect statement
(a) Economic development is linked to environmental conservation
(b) Sustainable development encourages development for current generation and conservation of resources for future generations
(c) Sustainable development does not consider the view points of stakeholders
(d) Sustainable development is a long planned and persistent development
Answer:(c)
Sustainable development thinks about the perspectives of partners or the stakeholders.
It is a cycle wherein decentralized economic growth and ecological protection go inseparably. It empowers advancement for current generation and the preservation of resources for future generation as well.
It is a long-planned and persistent development. Today, financial development is connected to environmental protection. The climate isn't degraded or put to hazard for the sake of a monetary turn of events.
Hence statement (c) is incorrect and thus the correct answer.

Question:16

Which of the following is not a natural resource?
(a) Mango tree
(b) Snake
(c) Wind
(d) Wooden house
Answer:(d)
Natural resources occur naturally within an environment that exists relatively undisturbed by a human, in a natural form.
The wooden house is not a natural resource. It is man-made.
A mango tree, snake and wind are natural resources. They are present in the environment naturally.
Hence option (b) is correct.

Question:17

Select the wrong statement
(a) Forests provide variety of products
(b) Forests have greater plant diversity
(c) Forests do not conserve soil
(d) Forests conserve water
Answer:(c)
Forests are major sites for conservation of soil. The roots of trees firmly hold the soil particles to protect it from flowing away. The humus is more in the soil of forests.
Forest provides variety of products, e.g., timber, paper etc. They have a greater plant diversity as different type of plants are naturally present. Forest also helps in conservation of water.
Hence option (c) is correct.

Question:18

Arabari forests of Bengal is dominated by
(a) Teak
(b) Sal
(c) Bamboo
(d) Mangroove
Answer:(b)
Arabari forests of Bengal is dominated by sal trees.
With the dynamic and willing support of the local community, these forests went through an astounding recovery by 1983.
Hence option (b) is correct.

Question:19

Ground water will not be depleted due to
(a) afforestation
(b) thermal power plants
(c) loss of forest, and decreased rainfall
(d) cropping of high water demanding crops
Answer:(a)
Afforestation means plantation of trees. Groundwater will not be depleted due to afforestation.
Thermal power plants pollute the groundwater.
Loss of forest and decreased rainfall also pollutes the groundwater.
Most of the groundwater is polluted due to the use of excess water for cropping of high water demanding crops.
Hence option (a) is correct.

Question:20

Opposition to the construction of large dams is due to
(a) social reasons
(b) economic reasons
(c) enviromental reasons
(d) all the above
Answer:(d)
Opposition to the construction of large dams by local people is due to social, economic and environmental problems.
The consequences of raising the height of dams are as follows:

  • Environmental: Terrestrial flora and fauna of area is destroyed completely. It leads to deforestation and loss of biological diversity.

  • Social: It leads to dislocation of people and domestic animals living in an area which causes various social problems. Significant farming area might be forever lost.

  • Economic: The people are not even given adequate compensation for their losses. This obviously leads to economic problems such as temporary unemployment for people.

Hence option (d) is correct.

Question:21

Khadins, Bundhis, Ahars and Kattas are ancient structures that are examples for
(a) grain storage
(b) wood storage
(c) water harvesting
(d) soil conservation
Answer:(c)

  • Khadin is an ingenious construction designed to harvest surface runoff water for agriculture. These are mostly found in Rajasthan.

  • Bundhis are used for water harvesting in Madhya Pradesh and Uttar Pradesh.

  • Ahars are reservoirs with an embankment on three sides mostly found in Bihar.

  • Kattas are temporary check dams built across streams and rivulets found in Karnataka.

All these are still in use today for the conservation of water.
Hence option (c) is correct.

Question:22

Pick the right combination of terms which has no fossil fuel.
(a) Wind, ocean and coal
(b) Kerosene, wind and tide
(c) Wind, wood, sun
(d) Petroleum, wood, sun
Answer:(c)
Fossil fuel is a general term for buried combustible geologic deposits of natural materials, formed from decayed plants and animals that have been converted to crude oil, coal, natural gas, or heavy oils by exposure to heat and pressure in the earth's crust over hundreds of millions of years.
Wind, wood, sun has no fossil fuel.
Coal, petroleum and kerosene are fossil fuels in the given list
Hence option (c) is correct.

Question:23

Select the eco-friendly activity among the following
(a) Using car for transportation
(b) Using polybags for shopping
(c) Using dyes for colouring clothes
(d) Using windmills to generate power for irrigation
Answer:(d)

  • Eco-friendly means earth-friendly or not harmful to the environment.

  • The car uses petrol or diesel that is non-renewable. So it is not eco friendly

  • Polybags are non-biodegradable. It is also not eco friendly

  • Dyes are synthetic chemical compounds so not eco friendly

  • The wind is a renewable source of energy. So, using windmills to generate power for irrigation is an eco-friendly activity.

Hence option (d) is correct.

Question:24

It is important to make small check dams across the flooded gullies because they
(i) hold water for irrigation
(ii) hold water and prevent soil erosion
(iii) recharge ground water
(iv) hold water permanently
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (ii) and (iv)
Answer:(b)
It is important to make small check dams across the flooded gullies because they recharge groundwater.
These small dams assist in withholding water. This gives dampness to the vegetation cover, subsequently preventing soil erosion.
Therefore statements (ii) and (iii) are correct.
Hence option (b) is correct.

NCERT Exemplar Class 10 Science Solutions Chapter 16-Short Answer

Question:25

Prepare a list of five items that you use daily in the school. Identify from the list such items that can be recycled.
Answer:

Many items that are we use daily in school are pen, paper, plastic box, steel spoon/fork, scale, eraser, sharpener, compass, divider (metallic) etc.
Among these, the items that can be recycled are paper, plastic box, metallic compass, steel lunch box and steel spoon.

Question:26

List two advantages associated with water harvesting at the community level.
Answer:

Water harvesting is a strategy for holding water on the outside of the earth, to make it permeate under the ground in order to recharge groundwater.
Two advantages associated with water harvesting at the community level are:
(i) Giving people control or command over their local water resources guarantees that mismanagement is decreased to a minimum level.
(ii) The water stored in the ground does not evaporate, gives moisture for vegetation over a wide territory, and is protected from pollution by human and animal waste. Hence over-exploitation of these resources is reduced.

Question:27

In a village in Karnataka, people started cultivating crops all around a lake which was always filled with water. They added fertilisers to their field in order to enhance the yield. Soon they discovered that the waterbody was completely covered with green floating plants and fishes started dying in large numbers.
Analyse the situation and give reasons for excessive growth of plants and death of fish in the lake.
Answer:
Fertilizers mainly contain phosphates and nitrates. Using these fertilizers around the lake, makes the water body enriched with these chemicals.
This enhances the supplements in water leading to excessive development of small, green, aquatic plants and the surface of water gets completely covered with plants. This process is called eutrophication. It induces excessive growth of algae.
These small plants consume most of the dissolved oxygen of the water leading to its deficiency. Due to this, the fishes and the other aquatic life in the lake die because of oxygen starvation and depletion of light.

Question:28

What measures would you take to conserve electricity in your house?
Answer:

A few measures can be taken to conserve electricity in our house are as follows:

  • (i) Turn off unnecessary lights

  • (ii) Turn off the fans in unoccupied rooms and also when they are not required.

  • (iii) Try to use natural light as much as possible. Maximize the use of solar radiation.

  • (iv) Unplug unused electronics.

  • (v) During winters, use solar water heating system instead of electric heaters.

  • (vi) Fluorescent tubes or CFL should be used instead of electric bulbs as they consume less electricity.

Question:29

Although coal and petroleum are produced by degradation of bio- mass, yet we need to conserve them. Why?
Answer:

Coal and petroleum were formed from the degradation of biomass. This biomass included ancient plant life which lived millions of years ago.
These resources are being utilized at a much faster rate than their formation. So they will be exhausted in the near future. And then we would need to look for alternative sources of energy.
This is the reason why we need to conserve them, although these resources are produced by the degradation of bio-mass.

Question:30

Suggest a few measures for controlling carbon dioxide levels in the atmosphere.
Answer:

(i) Photosynthesis: It removes carbon dioxide naturally. Growing, reestablishing and managing forests to energize more carbon take-up can use the power of photosynthesis, changing a noticeable amount of carbon dioxide all around into carbon put away in wood and soils.
(ii) Reducing the consumption of petroleum in automobiles: This can be done using car-pools, public transport, electric bikes and other electric transport.
(iii) Use of alternative fuels such as CNG (clean fuel) instead of coal and petroleum
(iv) Prepare manure out of litter instead of burning it.
(v) The smoke emerging from the thermal power stations and different industries ought to be very much treated to eliminate harmful gases, prior to releasing it into the atmosphere.

Question:31

(a) Locate and name the water reservoirs in Figures 16.1 (a) and (b).
(b) Which has an advantage over the other and why?

Answer:
(a) The water reservoir is a pond in fig. (a) and underground water body in fig. (b) i.e., the underground water body has more advantage over a water reservoir.
(b) There are many advantages of water stored in the ground. Some of these are as follows:

  • (i) It does not evaporate.

  • (ii) It spreads out to recharge wells and provides moisture for crops over a wide area.

  • (iii) Stagnant water collected in ponds promotes the breeding of mosquitoes. Whereas water stored in the ground does not.

  • (iv) Water stored in the ground is free from contamination by human and animal wastes.

  • (v) It is utilized for the benefits of the local population

NCERT Exemplar Class 10 Science Solutions Chapter 16-Long Answer

Question:32

In the context of conservation of natural resources, explain the terms reduce, recycle and reuse. From among the materials that we use in daily life, identify two materials for each category.
Answer:
In the context of natural resources, the following terms refer to

  • Reduce: This means to use a material/commodity in a lesser quantity.

  • Recycle: This means a material that is used once, is collected and sent back to a manufacturer so that they can make some other useful materials from it.

  • Reuse: It means using a thing over and over again instead of throwing it away. This is actually even better than recycling because the process of recycling uses some energy.

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From among the materials we use in daily life, we can:
Reduce electricity use and reduce petroleum usage.
Recycle used paper, plastic bottles, metal objects.
Reuse the plastic bottles, polythene bags etc.

Question:33

Prepare a list of five activities that you perform daily in which natural resources can be conserved or energy utilisation can be minimised.
Answer:
Activities that we perform daily in which natural resources can be conserved or energy utilization can be minimized are as follows:
(i) Use fan and light only when required. Switch them off in unoccupied rooms.
(ii) Use CFL in place of conventional bulbs/tubes.
(iii) Avoid using a hose pipe for watering plants as a lot of water is wasted through it.
(iv) Turn off tap water when not in use.
(v) Use solar energy/natural light whenever possible.
(vi) Unused water in the water bottles may be used for watering plants.
(vii) Use public transport or car pools to save fuel.
(vii) Use CNG as an alternative fuel.
(ix) Pressure cookers should be used for cooking food to save fuels.
(x) Use stairs to climb instead of taking lift.

Question:34

Is water conservation necessary? Give reasons.
Answer:

Conservation of water is necessary due to following reasons:
(i) Uneven distribution: Some parts of our country have high resources of water whereas other parts suffer from chronic water shortage. This causes floods in some regions and drought in other regions.
(ii) Fluctuation in rainfalls is very common and wide seasonal rains are observed yearly.
(iii) Dumping of untreated sewage and industrial wastes in rivers and ponds make them polluted.
(iv) The changing lifestyle of people increases the consumption of water, especially in urban areas.
(v) High yielding varieties of crop uses much more water for irrigation.

Question:35

Suggest a few useful ways of utilising waste water.
Answer:

Some useful ways of utilizing wastewater are as follows
(i) Recharging the groundwater.
(ii) Can be used for agricultural purposes such as irrigation.
(iii) Treated water can be used for washing cars, watering gardens etc.
(iv) Recycling aquarium water
(v) Collect rainwater.
(vi) Wastewater from the kitchen can be collected and reused in toilet cleaning.
(vii) Certain pollutants in municipal water can act as fertilizer for various crops.

Question:36

What is the importance of forest as a resource?
Answer:

Forest are renewable natural resources. They are important as a resource due to the following reasons:
(i) They provide habitat, food and protection to wildlife.
(ii) Help in balancing CO2 and O2 of the atmosphere.
(iii) Improves water holding capacity of the soil.
(iv) Regulates the water cycle.
(v) For human beings, they are the source of various essential commodities like fuel, wood, timber, fruits, resins, etc
(vi) Forest helps in the conservation of biodiversity as a large number of species (of plants and animals) live inside them.

Question:37

Why are the Arabari forests of Bengal known to be a good example of conserved forest?
Answer:

Arabari Forest Range, is the name of a forest range in West Bengal. The Arabari forest of Bengal was badly degraded. Conservation efforts were begun in 1972.
The West Bengal Forest Department (headed by Indian Forest Service officer Shri Ajit Kumar Banerjee) planned to revive the degraded forest by involving the local people.
The residents of the surrounding area were associated with the protection of 1272 hectares of this forest. With the dynamic participation of neighbourhood individuals living around the forest, the degraded sal forest of Arabari turned out to be thick and green inside ten years.
Consequently, the residents were given work in both silviculture and harvesting operations of the forest and were permitted to gather firewood and fodder from the forest area on a very nominal payment. Thus, the Arabari forest provides a genuine example of the conserved forest.

NCERT Exemplar Class 10 Science Solutions Chapter 16 Management of Natural Resources Important Topics:

  • In this chapter, we understand how to save these natural sources from any kind of pollution.
  • NCERT exemplar Class 10 Science solutions chapter 16 discusses natural resources which are being exhausted rapidly and understands the importance to save them.
  • In this chapter, students will learn the pH measurement of water to decide the usability of water.

NCERT Class 10 Exemplar Solutions for Other Subjects:

NCERT Class 10 Science Exemplar Solutions for Chapters:

Features of NCERT Exemplar Class 10 Science Solutions Chapter 16 Management of Natural Resources:

These Class 10 Science NCERT exemplar chapter 16 solutions provide an understanding of the management of natural resources. Energy is very important for life to exist, sources of energy are called resources, they may be natural as well as artificial. Along with energy sources, other important substances are found in nature and they all are cumulatively called natural resources. Soil, water, air, and many other substances around us are called natural resources. It is highly recommended to use these solutions for understanding and scoring high in Management of Natural Resources based problems. The NCERT exemplar Class 10 Science chapter 16 solutions Management of Natural Resources due to their comprehensive nature nurtures the students in a way that he/she can attempt other books such as CBSE previous year question papers, NCERT Class 10 Science Book, et cetera.

An exclusive feature of NCERT exemplar Class 10 Science solutions chapter 16 pdf download can help the students to browse through these solutions even in the offline environment and get answers to their queries while studying NCERT exemplar Class 10 Science chapter 16.

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Frequently Asked Questions (FAQs)

1. Q1. What does pH value depict?

A1. pH value depicts the net acidic or basic nature of any solution of water. If the pH value is 7 that means water is pure. If the pH value is more than 7 means water is basic and less than 7 will tell that water is acidic.

2. Q2. What are coliform bacteria?

A2. It is a bacterium which is generally found in excreta of humans. These bacteria pollute the water and generally it is spread due to unburnt corpse in rivers

3. Q3. What are three R to save the natural resource?

A3. Three R to save the natural resources are:

  1. We have to reduce the use of natural resources

  2. We have to recycle the natural resources

  3. We have to reuse the natural resources

Therefore, “reduce recycle reuse “are the three R to save natural resources.

4. Q4. Does this chapter of great importance in further studies?

A4. The chapter on Management of Natural Resources holds great importance as students should be alert and aware about the proper management of Natural resources in order to sustain a safe and healthy environment for our future generations. NCERT exemplar Class 10 Science solutions chapter 16 explains and covers all of these aspects.

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    • Follow the navigation instructions provided by Google Maps.

  3. By Local Transport:

    • Auto-rickshaw/Taxi: Hire an auto-rickshaw or taxi and inform the driver about your destination. Most local drivers should be familiar with Sadhu Ashram.
    • Bus: Check if there are any local buses that operate on Ramgart Road. Ask the bus conductor if the bus stops near Sadhu Ashram.

  4. Landmarks to Look For:

    • As you approach Ramgart Road, look for local landmarks that might help you confirm you’re on the right path, such as known shops, temples, or schools nearby.

  5. Ask for Directions:

    • If you're unsure, ask locals for directions to Sadhu Ashram on Ramgart Road. It's a known location in the area.

  6. Final Destination:

    • Once you reach Ramgart Road, Sadhu Ashram should be easy to spot. Look for any signage or ask nearby people to guide you to the exact location.

If you need detailed directions from a specific location or more information about Sadhu Ashram, feel free to ask

Read Complete Answer
sai raja 01 September,2024
show the previous year exams ?

Hello Aspirant,  Hope your doing great,  your question was incomplete and regarding  what exam your asking.

Read Complete Answer
SWETCHCHA MISKA 10 July,2024
as an icse student in class 10 is above 80 percent good enough to get into commerce in 11th cbse

Yes, scoring above 80% in ICSE Class 10 exams typically meets the requirements to get into the Commerce stream in Class 11th under the CBSE board . Admission criteria can vary between schools, so it is advisable to check the specific requirements of the intended CBSE school. Generally, a good academic record with a score above 80% in ICSE 10th result is considered strong for such transitions.

Read Complete Answer
Manasvini Gupta 23 July,2024
i had cleared 10th from cbse in 2022 2 years ago now i wish to apply for 12th as private candidate in 2025. can i do so?

hello Zaid,

Yes, you can apply for 12th grade as a private candidate .You will need to follow the registration process and fulfill the eligibility criteria set by CBSE for private candidates.If you haven't given the 11th grade exam ,you would be able to appear for the 12th exam directly without having passed 11th grade. you will need to give certain tests in the school you are getting addmission to prove your eligibilty.

best of luck!

Read Complete Answer
Ashvadha 03 July,2024
i had cleared 10th in 2022 from cbse can i apply for 12th as private candidate this year?

According to cbse norms candidates who have completed class 10th, class 11th, have a gap year or have failed class 12th can appear for admission in 12th class.for admission in cbse board you need to clear your 11th class first and you must have studied from CBSE board or any other recognized and equivalent board/school.

You are not eligible for cbse board but you can still do 12th from nios which allow candidates to take admission in 12th class as a private student without completing 11th.

Read Complete Answer
sadafreen356 03 July,2024

Popular CBSE Class 10th Questions

A block of mass 0.50 kg is moving with a speed of 2.00 ms-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1)

0.34\; J

 Option 2)

0.16\; J
Option 3)

1.00\; J

 Option 4)

0.67\; J
Read More

A person trying to lose weight by burning fat lifts a mass of 10 kg upto a height of 1 m 1000 times.  Assume that the potential energy lost each time he lowers the mass is dissipated.  How much fat will he use up considering the work done only when the weight is lifted up ?  Fat supplies 3.8×107 J of energy per kg which is converted to mechanical energy with a 20% efficiency rate.  Take g = 9.8 ms−2 :

Option 1)

2.45×10−3 kg

 Option 2)

 6.45×10−3 kg
Option 3)

 9.89×10−3 kg

 Option 4)

12.89×10−3 kg

 
Read More

An athlete in the olympic games covers a distance of 100 m in 10 s. His kinetic energy can be estimated to be in the range

Option 1)

2,000 \; J - 5,000\; J

 Option 2)

200 \, \, J - 500 \, \, J
Option 3)

2\times 10^{5}J-3\times 10^{5}J

 Option 4)

20,000 \, \, J - 50,000 \, \, J
Read More

A particle is projected at 600   to the horizontal with a kinetic energy K. The kinetic energy at the highest point

Option 1)

K/2\,

 Option 2)

\; K\;
Option 3)

zero\;

 Option 4)

K/4
Read More

In the reaction,

2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}

Option 1)

11.2\, L\, H_{2(g)}  at STP  is produced for every mole HCL_{(aq)}  consumed

 Option 2)

6L\, HCl_{(aq)}  is consumed for ever 3L\, H_{2(g)}      produced
Option 3)

33.6 L\, H_{2(g)} is produced regardless of temperature and pressure for every mole Al that reacts

 Option 4)

67.2\, L\, H_{2(g)} at STP is produced for every mole Al that reacts .
Read More

How many moles of magnesium phosphate, Mg_{3}(PO_{4})_{2} will contain 0.25 mole of oxygen atoms?

Option 1)

0.02

 Option 2)

3.125 × 10-2
Option 3)

1.25 × 10-2

 Option 4)

2.5 × 10-2
Read More

If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of a substance will

Option 1)

decrease twice

 Option 2)

increase two fold
Option 3)

remain unchanged

 Option 4)

be a function of the molecular mass of the substance.
Read More

With increase of temperature, which of these changes?

Option 1)

Molality

 Option 2)

Weight fraction of solute
Option 3)

Fraction of solute present in water

 Option 4)

Mole fraction.
Read More

Number of atoms in 558.5 gram Fe (at. wt.of Fe = 55.85 g mol-1) is

Option 1)

twice that in 60 g carbon

 Option 2)

6.023 × 1022
Option 3)

half that in 8 g He

 Option 4)

558.5 × 6.023 × 1023
Read More

A pulley of radius 2 m is rotated about its axis by a force F = (20t - 5t2) newton (where t is measured in seconds) applied tangentially. If the moment of inertia of the pulley about its axis of rotation is 10 kg m2 , the number of rotations made by the pulley before its direction of motion if reversed, is

Option 1)

less than 3

 Option 2)

more than 3 but less than 6
Option 3)

more than 6 but less than 9

 Option 4)

more than 9
Read More

Colleges After 12th

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News and Notifications
CBSE urges schools to complete 100% registration of Class 9, 11 students by October 16; late fee for delays
October 11, 2024 - 08:56 AM IST
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CBSE Class 10 compartment result 2024 soon at cbseresults.nic.in; websites to check
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