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NCERT Solutions for Class 8 Science Chapter 7 Conservation of Plants and Animals
Edited By Irshad Anwar | Updated on Apr 01, 2025 07:05 PM IST
According to CBSE Syllabus 2025-26, this chapter has been renumbered as Chapter 5.
NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals: The conservation of plants and animals is important to maintain ecological balance and biodiversity. This chapter helps students understand the importance of the harmful effects of deforestation and various conservation methods. It also introduces key concepts such as wildlife, sanctuaries, national parks, biosphere reserves, and the role of reforestation and restoring natural habitats. Students can build a strong conceptual foundation by referring to these explanations. For finding solutions to any other class questions, NCERT Solutions will help you out.
This Story also Contains
- NCERT Solutions PDF for Class 8 Science Conservation of Plants and Animals
- Conservation of Plants and Animals Class 8 Science NCERT Textbook Questions: Paheli and Boojho's Questions
- NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals: Solved Exercise Questions:
- NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals: Solved Exercise Questions:
- Important topics of NCERT Class 8 Science Chapter 5 - Conservation of Plants and Animals
- NCERT Chapter-Wise Solutions For Class 8th Science
For a quick revision, the Conservation of Plants and Animals Class 8 questions and answers section helps students read the chapter efficiently. The NCERT Solutions for Class 8 are written in simple language to improve concept clarity. Additionally, students can download the solutions in PDF format to study in their comfort. Since these solutions are similar to the latest CBSE syllabus, they prove a reliable resource for students aiming to score high in exams.
NCERT Solutions PDF for Class 8 Science Conservation of Plants and Animals
The PDF link is given below-
Conservation of Plants and Animals Class 8 Science NCERT Textbook Questions: Paheli and Boojho's Questions
The solved questions are given below-
Paheli's Question (Page number 53)
Q. What is the purpose of making national parks, wildlife sanctuaries and biosphere reserves?
Answer:
The main purpose of making national parks, wildlife sanctuaries and biosphere reserves is to protect the animals from an external threat like prevent from hunting and other danger.
And also to maintain their natural habitat as well as their own environment.
Boojho's Question (Page Number 53)
Q. How does deforestation reduce rainfall on the one hand and lead to floods on the other?
Answer:
Deforestation means cutting down the trees. We know that trees play an essential role in the water cycle as they contribute moisture to the air which brings rainfall. So if no. of trees decreases the process of transpiration and the water cycle gets disturbed. Hence rainfall will be reduced.
Reduced rain will reduce the amount of water absorption in the soil. This soil will be dry and lead to lower water intake in the trees, and because of that, soil erosion will occur, and it will lead to floods.
Activity 5.2 (Page Number - 54)
Q. Animal life is also affected by deforestation. How?
Answer:
Animal life is also affected by deforestation because wild animals lose their shelter and food amount is decreased. So, they start migrating in search of food, in this process, they might get killed by other animals or hunters. In this way, their life will be affected by deforestation.
Paheli's Question (Page number -59)
Q. Are only big animals facing extinction?
Answer:
No, It is not necessary that only a big animal is going to be extinct. Ex-Dodo is not that big but is extinct now.
NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals: Solved Exercise Questions:
NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals: Solved Exercise Questions:
The solved exercise answers are given below-
(a) A place where animals are protected in their natural habitat is called_________.
(b) Species found only in a particular area is known as_________.
(c) Migratory birds fly to faraway places because of_________changes.
Answer:
(a) A place where animals are protected in their natural habitat is called a Sanctuary.
(b) Species found only in a particular area are known as endemic species.
(c) Migratory birds fly to faraway places because of climate changes.
Q2 (a). Differentiate between the following.
Wildlife sanctuary and biosphere reserve
Answer:
Here is the difference between a wildlife sanctuary and a biosphere reserve:
| Wildlife sanctuary | Biosphere reserve |
| 1. It is a place where animals are protected from any disturbance and also their habitat is conserved. 2. It provides protection as well as suitable living conditions for wild animals. 3. example- Bori and Pachmarhi (part of Pachmarhi biosphere) | 1. It is a large area of protected land for the conservation of animals, plants and their habitat. 2. It helps to maintain the biodiversity and culture of that area. 3. ex. Pachmarhi biosphere |
Q2 (b). Differentiate between the following.
Zoo and wildlife sanctuary
Answer:
Here is the difference between a zoo and a wildlife sanctuary:
| Wildlife sanctuary | Zoo |
| 1. It is a place where animals are protected from any disturbance and also their habitat is conserved. 2. It provides protection as well as suitable living conditions for wild animals. | 1. It is a place where animals are kept for public exhibitions 2. It is an artificial habitat, where things are provided by humans/owners |
Q2 (c). Differentiate between the following.
Endangered and extinct species
Answer:
Here is the difference between endangered and extinct species:
| Endangered Species | Extinct species |
| 1. The species which are going to be extinct or on the verge of becoming extinct. 2. ex- a blue whale | 1. Those species which are already gone or no longer exist on earth. 2. ex- dodo |
Q2 (d). Differentiate between the following.
Flora and fauna
Answer:
Here is the difference between flora and fauna:
| Flora | Fauna |
| 1. These are living plants from a particular area. 2. Sal, teak, jamun and Silver ferns are examples of flora. | 1. animals living in a particular area 2. barking deer, wolf, cheetah, and wild dog are examples of fauna. |
Q3. Discuss the effects of deforestation on the following. (a) Wild animal
Answer: Due to deforestation, the forests are going to be exterminated and because of that animals are losing their homes as well as their natural habitat. Therefore their populations are going down rapidly.
Q3. Discuss the effects of deforestation on the following. (b) Environment
Answer: Due to deforestation, unbalancing is happen between carbon dioxide and oxygen. Also, it affects the climate of the surrounding environment. Global warming is increasing because of the increase in the amount of carbon dioxide.
Q3. Discuss the effects of deforestation on the following (c) Villages (Rural areas)
Answer- Because of deforestation, in rural areas, the level of groundwater goes down which means access to potable water becomes difficult. Also, more chance of soil erosion is occurring because plant roots that hold the soil particles together have been removed also the fertility of the soil is decreased.
Q3. Discuss the effects of deforestation on the following. (d) Cities (Urban areas)
Answer:- Effects of deforestation on cities:
It can increase the chances of natural calamities like a flood or heavy rainfall. Also, it can lead to global warming because of the increase in the level of carbon dioxide in the atmosphere because of vehicular and industrial pollution. An increase in temperature also disturbs the water cycle.
Q3. Discuss the effects of deforestation on the following. (e) Earth
Answer:
Deforestation disturbs the whole ecological system. As a result of deforestation, an increase in chances of floods, soil erosion, drought, and desertification increase. Also, increase global warming due to the increase in the level of carbon dioxide. As a result, the total water cycle gets disturbed and also the level of potable water goes down.
Q3. Discuss the effects of deforestation on the following. (f) The next generation
Answer:
Effect of deforestation on the next generation- Deforestation causes many problems such as drought, floods, soil erosion, greenhouse effects, and other global issues, etc. And after all, the consequences of these will affect the future generation.
Q4. What will happen if
(a) we go on cutting tree
(a) we go on cutting trees
Answer: If we cut the trees, the life of animals and their habitat will completely vanish.
And because of it, the ecological balance is disturbed. The biodiversity of many areas will be destroyed completely.
Also global warming increases and due to it, desertification will happen which leads to soil erosion and also more chance of drought.
(b) the habitat of an animal is disturbed
Answer:
If the habitat of animals is disturbed, it means their home and food all are going to have vanished for them.
So they start migrating to the land areas in search of food and shelter, where people live, and this is dangerous for those people.
Also, animals can get killed by others. As a result whole ecological system is starting to unbalancing.
(c) the top layer of soil is exposed.
Answer:
If the top layer of soil is exposed, then it will gradually be exposed to the lower layer of the soil which is mostly rocky and hard.
And this is less fertile because it has less humus.
If the soil erosion is continuously occurring then the land becomes completely fertile.
Q5 (a). Answer in brief.
Why should we conserve biodiversity?
Answer:
We should conserve biodiversity because it contains a variety of life forms like plants, wild animals and micro-organisms in an area.
For survival, All plants and animals depend on each other.
If you disturb any one of them, the second will affect you automatically.
Therefore, we need to protect them to maintain the balance in nature.
Q5(b). Answer in brief.
Protected forests are also not completely safe for wild animals. Why?
Answer:
Protected forests are also not entirely safe for wild animals because the people who live near the jungle mainly depend on the forests for their food and other requirements purposes.
So in this process, some wild animals are getting killed and sold for their greediness of money.
Q5(c). Answer in brief.
Some tribals depend on the jungle. How?
Answer:
Some tribals depend on the jungle because it provides them with shelter, food and other requirements like herbs and so many things which are useful for them.
Q5(d). Answer in brief.
What are the causes and consequences of deforestation?
Answer:
Due to deforestation, there is an increase in temperature and pollution on earth.
It increases the level of carbon dioxide in the atmosphere. Groundwater level also gets lowered. deforestation disturbs the balance in nature.
If we continue the cutting of trees, rainfall and the fertility of the soil will decrease. More chances of natural calamities like floods and droughts.
Q5(e). Answer in brief.
What is the Red Data Book?
Answer:
A red data book is a sourcebook. This book keeps a record of endangered animals and plants all over the world.
This book is maintained by the IUCN (International Union for Conservation of Nature and Natural Resources).
Q5(f). Answer in brief.
What do you understand by the term migration?
Answer:
Migration means the movement of a group of an organisms from its natural habitat to other places at a particular time of every year.
They do migrate because of the climate change in their habitat.
Answer:
No, It is not at all justified to cut trees to meet the ever-increasing demand in factories and for shelter. Forests are the home for many organisms such as wild animals. Basically, forests are home to wild animals and they provide us with a good quality of air as they give out oxygen and absorb the carbon dioxide from the surroundings.
They prevent the excess heating of the atmosphere; also they prevent soil erosion. Trees help to increase the fertility of the soil and also preserve biodiversity. To fulfil the needs of the human population, we have been cutting so many trees, and as a result, we have to face many problems like global warming, soil erosion, droughts, etc.
Hence we cannot afford to cut more trees, and we need to save them.
Answer:
We can contribute to the maintenance of green wealth in our locality in the following ways-
- By taking care of plants and trees in our surroundings. We can do more planting.
- To encourage the people of my area to plant more trees by telling them about the importance of trees.
- We can aware young children by telling them about the consequences of deforestation and how it affects the environment.
- And also keep watering the plants, so that they can grow healthy and easily.
Q8. Explain how deforestation leads to reduced rainfall.
Answer:
Deforestation means the removal of trees or plants from an area for different purposes.
We know that plants absorb carbon dioxide from the atmosphere. and if there is no plant, the level of carbon dioxide in the atmosphere will rise.
These lead to increasing the temperature of the earth, and it will disturb the water cycle. As a result of the disruption in the water cycle, also affects the rainfall pattern.
Answer:
Name of the state- West Bengal
National park- Sundarban nation park
Here below is the outline of Sundarban National Park
Q10. Why should the paper be saved? Prepare a list of ways by which you can save paper.
Answer:
The paper should be saved because to make one-tonne paper we need to cut approximately seventeen fully grown trees. Therefore, to save trees and prevent the impact of their loss on living organisms. we need to save the papers.
Paper can be saved in the following ways-
- by collecting used paper and recycle it
- use both sides of the paper
- Spread the awareness about paper
- Use paper efficiently
Q11. Complete the word puzzle.
Down
1. Species on the verge of extinction.
2. A book carrying information about endangered species.
5. Consequence of deforestation.
Across
1. Species which have vanished.
3. Species found only in a particular habitat.
4. Variety of plants, animals and microorganisms found in an area.
Answer:
- ENDANGERED & EXTINCT
- RED DATA BOOK
- ENDEMIC
- BIODIVERSITY
- DROUGHT
Also, Check NCERT Books and NCERT Syllabus here
Important topics of NCERT Class 8 Science Chapter 5 - Conservation of Plants and Animals
The important topics of the chapter are given below-
5. Conservation of Plants and Animals
Conservation of plants and animals aims to protect natural resources, prevent species extension and maintain a healthy environment. Human activities like deforestation, poaching and pollution have led to biodiversity loss, making conservation efforts essential.
5.1 Deforestation and Its Causes
Deforestation refers to the large-scale cutting of trees, leading to habitat loss. Major causes include urbanisation, agriculture logging industrial expansion and forest fires. It disrupt ecosystems and affects climate patterns.
5.2 Consequences of Deforestation
Deforestation leads to soil erosion, loss of biodiversity, climate change, desertification, and reduced rainfall. It also increases the risk of natural disasters such as floods and drought harming both wildlife and human communities.
5.3 Conservation of Forest and Wildlife
Protecting forests and wildlife involves afforestation, reforestation, reducing deforestation and creating protected areas like national parks and sanctuaries. Laws and awareness campaigns also play a vital role in conservation efforts.
5.4 Biosphere Reserve
A biosphere reserve is a protected area meant to conserve biodiversity while allowing sustainable human activities. It consists of three zones, the core, buffer and transition zones. Examples include the Nilgiri biosphere reserve in India.
5.5 Flora and Fauna
Flora refers to the plants of a region while fauna refers to its animals. Different regions have unique flora and fauna, depending on the climate, soil and geographical conditions.
5.6 Endemic Species
Endemic species are plants and animals found only in a specific region and not naturally occurring elsewhere. Examples include the lion-tailed macaque in the Western Ghats and the Kangaroo in Australia.
5.7 Wildlife Sanctuary
Wildlife sanctuaries are protected areas where animals are safe from hunting and habitat destruction. Human activities are restricted, but some conservation activities are allowed. Examples include the Periyar Wildlife Sanctuary in Kerala.
5.8 National Park
National parks are areas dedicated to preserving wildlife, flora and fauna. Unlike sanctuaries, they have strict protection laws and no human activities are allowed. Examples include Jim Corbett National Park and Kaziranga National Park.
5.9 Red Data Book
The red data book is a record of endangered and threatened species of plants and animals. It helps in tracking species at risk and implementing conservation measures. The International Union for Conservation of Nature (IUCN) maintains it.
5.10 Migration
Migration is the seasonal movement of animals, mainly birds, from one place to another due to climate changes, food availability, or breeding purposes. Examples include the Siberian Crane visiting India during winter.
5.11 Recycling of Paper
Recycling paper helps in reducing deforestation, saving energy and minimising pollution. It involves processing used paper to create new paper products. This conserves natural resources like wood and water.
5.12 Reforestation
Deforestation is the process of replanting trees and deforested areas to restore ecosystems. It helps in reducing carbon dioxide levels, preventing soil erosion and increasing biodiversity. Governments and organisations promote forestation to combat climate change.
NCERT Chapter-Wise Solutions For Class 8th Science
The chapter-wise NCERT solutions for all the science chapters are given below:
The NCERT Solutions for Class 8 Science covers all the chapters in an easy-to-understand format. The conservation of plants and animals is essential for a balanced and sustainable environment. By protecting forests, preventing deforestation, and promoting conservation strategies like forest and wildlife production, we can ensure the survival of various species. Understanding these concepts helps individuals take responsibility for preserving nature for future generations.
NCERT Solutions For Class 8th: Subject-wise
We hope you will ace your examination with the help of NCERT Solutions for Class 8 Science Chapter 5 Conservation of Plants and Animals.
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