NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource

# NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource

Edited By Irshad Anwar | Updated on Feb 16, 2024 06:22 PM IST

NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource: Solution for Class 7th Water A precious Resource is part of NCERT Solutions for Class 7 Science. Water is a precious resource, and using it carefully is an important thing. What is groundwater? What are the causes of the depletion of the water table? These questions are answered with the help of NCERT solutions for Class 7 Science chapter 16 Water A Precious Resource. Topics like how much water is available for use on earth, what the amount of rainfall is in different regions of India, how water scarcity affects plants, etc. are discussed in the chapter. The NCERT solutions for Class 7 Science Chapter 16 Water A Precious Resource help in the preparation of exams.

For Class 7 students who are following the NCERT syllabus, the NCERT Solutions for all the subjects help in their studies. NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource gives an explanation to nine exercise questions. Students are recommended to go through NCERT Solutions for Class 7 to score high marks in their examination. Water A Precious Resource Class 7 Solutions provides answers to each question in the NCERT textbook. Continue reading to go through the questions and answers given in NCERT Solutions for Class 7 Science Chapter 16.

## NCERT Solutions for Class 7 Science Chapter 16 Water a Precious Resource

### NCERT Solutions for Class 7 Science Chapter 16 Water a Precious Resource Exercise

#### Class 7th Water A Precious Resource NCERT Solutions:

1. Mark ‘T’ if the statement is true and ‘F’ if it is false:

(a) True

(b) False

(c) False

(d) True

#### Class 7 Water A Precious Resource NCERT Solutions:

The rainwater and water from water bodies get accumulated in the aquifer deep underground. Then there are some rocks which prevent further sinking of water.

In this way, groundwater is recharged.

#### Class 7th Science Chapter 16 Question Answer:

If they will draw water from the ground more than the rechargeable amount for the long term then the water table will go down.

#### Class 7th Science Chapter 16 NCERT Solutions:

Drip irrigation method will be very efficient in this case as water is required in good quantity for the plants.

So we can save a lot of water by this method.

#### Class 7 Science Chapter 16 Question Answer:

The main factors responsible for the depletion of the water table are:-

(i) Increasing population so higher consumption.

(ii) Increasing industries

(iii) Agricultural activities

#### Class 7 Science Chapter 16 NCERT Solutions:

• (a) People obtain groundwater through________ and ________.
• (b) Three forms of water are ________, ________ and ________.
• (c) The water bearing layer of the earth is ________.
• (d) The process of water seepage into the ground is called ________.

(a) tube wells and hand pumps

(b) ice, water and vapour

(c) aquifer

(d) infiltration

#### Water A Precious Resource Class 7 Solutions:

(i) Rapid growth of industries
(ii) Increasing population
(iii) Heavy rainfall
(iv) Mismanagement of water resources

Heavy rainfall cannot be responsible for water shortage. Instead if stored properly it can increase the groundwater level.

#### Water A Precious Resource Class 7 NCERT Solutions:

(i) in the lakes and rivers of the world remains constant.
(ii) under the ground remains constant.
(iii) in the seas and oceans of the world remains constant.
(iv) of the world remains constant.

The total water of the world remains constant.

#### Class 7 Water A Precious Resource NCERT Solutions:

The required sketch is shown below:-

### NCERT Solutions for Class 7 Science Chapter 16 - Water a Precious Resource

The solution for Class 7th Science Chapter 16 consists of a total of nine questions, which include true/false, fill-in-the-blanks, and short theoretical-type questions. These solutions have been prepared by experts at Careers360 in a systematic and easy-to-understand manner. Students can download the Class 7 Science Ch 16 question answer in PDF format and use them offline, anytime and anywhere. Chapter 16 Science Class 7th solutions are reliable and accurate, helping students to understand the concepts thoroughly and perform better in their exams.

## Water: A Precious Resource Class 7 Science Chapter 16-Topics

• How Much Water Is Available
• Forms Of Water
• Groundwater As An Important Source Of Water
• Depletion Of Water Table
• Distribution Of Water
• Water Management
• What Role You Can Play
• Effect Of Water Scarcity On Plants

### Chapter-wise NCERT Solutions of Class 7 Science

 Chapter 1 Nutrition in Plants Chapter 2 Nutrition in Animals Chapter 3 Fibre to Fabric Chapter 4 Heat Chapter 5 Acids, Bases and Salts Chapter 6 Physical and Chemical Changes Chapter 7 Weather, Climate and Adaptations of Animals to Climate Chapter 8 Winds, storms and cyclones Chapter 9 Soil Chapter 10 Respiration in Organisms Chapter 11 Transportation in Animals and Plants Chapter 12 Reproduction in Plants Chapter 13 Motion and Time Chapter 14 Electric Current and its Effects Chapter 15 Light Chapter 16 Water: A Precious Resource Chapter 17 Forests: Our Lifeline Chapter 18 Wastewater Story

### NCERT Solutions for Class 7 Subject Wise

 NCERT Solutions for Class 7 Maths NCERT Solutions for Class 7 Science

### Benefits of NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource:

• The NCERT Solutions for Class 7 Science Chapter 16 Water Precious Resources help in revising the concepts studied in the chapter.
• The NCERT solutions for Class 7 Science Chapter 16 Water Precious Resources, help in solving homework questions.
• You will get all the answers to Science Chapter 16 Class 7 and it will help you score good marks in your school exam.
• Class 7th Science Chapter 16 Question Answer will also help you to understand all the concepts easily.
• You will get all the answers to water a precious resource Class 7 and it will help you score good marks in your school exam.
• Class 7th Science Chapter 16 Solutions PDF is easy to download and use offline.
• Water a precious resource Class 7 questions and answers are prepared by subject experts as per the latest CBSE syllabus.

#### Also Check NCERT Books and NCERT Syllabus here

We hope you will ace your examination with the help of NCERT Solutions for Class 7 Science Chapter 16 Water A Precious Resource.

### Frequently Asked Question (FAQs)

1. How many questions are present in chapter 16 science class 7th?

Chapter 16 of Class 7th Science consists of a total of nine questions

2. Write the chemical name of water.

The chemical name of water is H₂O

3. What are the topics covered in NCERT Class 7 Science chapter 16?

Here are the topics covered in NCERT Class 7 Science chapter 16

• How Much Water Is Available
• Forms Of Water
• Groundwater As An Important Source Of Water
• Depletion Of Water Table
• Distribution Of Water
• Water Management
• What Role You Can Play
• Effect Of Water Scarcity On Plants
4. Why should I refer to the NCERT Solutions for Class 7 Science Chapter 16?

Referring to NCERT Solutions for Class 7 Science Chapter 16 is beneficial as it provides comprehensive coverage, accurate and reliable information, and easy-to-understand solutions. It also helps in exam preparation by providing a variety of questions and can improve a student's performance.

5. What is groundwater according to Class 7th Science Chapter 16

Groundwater is the water that is present beneath the earth's surface, filling the gaps and pores between rocks and soil particles. It is an important source of freshwater and is obtained through wells and tube wells. The quality of groundwater varies depending on the area and the depth from which it is extracted. Groundwater is a valuable resource that needs to be conserved and managed carefully to ensure its sustainability.

6. Explain how groundwater is recharged for class 7?

Rainwater and water from other sources, like rivers and ponds, permeate the soil and fill crevices and gaps that are several feet underground. Water seeping into the ground is referred to as infiltration. Thus, this process recharges the groundwater.

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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

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 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

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

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

 Option 1) Option 2) Option 3) Option 4)

In the reaction,

 Option 1)   at STP  is produced for every mole   consumed Option 2)   is consumed for ever      produced Option 3) is produced regardless of temperature and pressure for every mole Al that reacts Option 4) at STP is produced for every mole Al that reacts .

How many moles of magnesium phosphate, 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

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.

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 Option 1) Molality Option 2) Weight fraction of solute Option 3) Fraction of solute present in water Option 4) Mole fraction.

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