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Important Questions for CBSE Class 8 Science Chapter 7 - Conservation of Plants and Animals

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Last updated date: 13th Jul 2024
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CBSE Class 8 Science Chapter-7 Important Questions - Free PDF Download

The CBSE Class 8 Science Chapter 7 Important Questions, available for free PDF download on Vedantu, represent a crucial resource for students in their science education journey. These meticulously crafted questions are designed to reinforce key concepts covered in Chapter 7, "Conservation of Plants and Animals." They serve as a valuable aid for students to assess their comprehension, hone problem-solving skills, and prepare effectively for examinations. 

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Study Important Questions for Class 8 Science Chapter 7 – Conservation of Plants

Very Short Answer Questions: 1 Mark

1. Why are trees in the forest cut? 

A. procuring land for cultivation 

B. building houses and factories 

C. making furniture or using wood as fuel 

D. all of these

Ans: D. All of these

2.  Survival of some animals has become difficult because of ____________. 

A. disturbance in rainfall 

B. disturbance in their natural habitat 

C. afforestation 

D. none of these

Ans: B. Disturbance in their natural habitat

3. Migratory birds fly to faraway places because of _______ changes. 

A. physical B. natural 

C. climatic D. environmental

Ans: C. climatic

4. A place in the environment where an organism lives is called a ________ 

A. home B. resort 

C. habitat D. reservoir

Ans: C. habitat

5. Fauna is ___________. 

A. plants B. animals 

C. microorganism D. both plants and animals

Ans: B. Animals

6. Sanctuary is a place where _________________. 

A. animals are protected B. plants are protected 

C. office of forest department D. a tribal village is protected

Ans: A. animals are protected

7. Give any two examples of a biosphere reserve

Ans:  Examples of biospheres are:

  1. Nilgiri

  2. Pachmarhi

8. Give any two examples of flora.

Ans: Examples of flora are:

  1. Neem

  2. Mango

9. Give any two examples of fauna.

Ans: Examples of fauna are:

  1. Lion

  2. Tiger

10. Give any two examples of endemic species.

Ans: Examples of endemic species are:

  1. Flora - Sal, wild mango 

  2. Fauna - Bison, Indian giant squirrel

11. Give any two examples of endangered species.

Ans: Examples of endangered species are:

  1. Texa Wild Rice

  2. Mountain Gorilla

12. Give any two examples of wildlife sanctuaries.

Ans: Examples of wildlife sanctuaries are:

  1. Chinnar Wildlife Sanctuary

  2. Gir Wildlife Sanctuary

13. Give any two examples of national parks.

Ans: Examples of national park are:

  1. Jim Corbett National Park

  2. Kaziranga National Park

14. Give any two examples of migratory birds.

Ans: Examples of migratory birds are:

  1. Saras

  2. Siberian Crane 

Short Answer Questions: 3 Marks

15. Define deforestation.

Ans: Deforestation is the clearing of forests or groups of trees for reusing the land for commercial purposes such as agriculture, construction, mining and urbanization.

16. What do you mean by a drought?

Ans: A drought is a period of time when an area or region receives less rain than usual. Reduced soil moisture or groundwater, reduced streamflow, agricultural damage, and a general water scarcity can all result from a lack of appropriate precipitation, whether rain or snow. Drought can also be an effect of change of temperature due to global warming.

17. What is desertification?

Ans: Desertification is the process of turning fertile land into deserts due to soil erosion and widespread deforestation. It can affect all - humans, plants and animals.

18. Differentiate between wildlife sanctuary and zoo.

Ans: Difference between wildlife sanctuary and zoo are as follows:

Wildlife Sanctuary

Zoo

Wildlife sanctuary is an area where animals are protected in their natural habitat.

Zoo is an enclosed area where animals are for public exhibition.

They allow the local people to graze their animals and collect firewood, fruits, medicinal plants etc.

No public activity is allowed.

E.g. Pachmarhi

E.g. Rajiv Gandhi Zoological Park, Pune.

19. How can we prevent biodiversity from getting disturbed?

Ans: We can prevent biodiversity from getting disturbed with the help of afforestation which implies planting more trees in the area. Along with this we need to follow the norms laid by government and policy makers for prevention of biodiversity. 

20. What do you mean by biosphere?

Ans: The biosphere is a worldwide ecosystem made up of living organisms (biota) and the nonliving (abiotic) components that provide them with energy and nutrition. It includes the atmosphere, lithosphere and hydrosphere.

21. What are the factors that affect the natural habitat of endemic species?

Ans: Factors affecting the natural habitat of endemic species are as follows:

  1. Destruction of natural habitat of the species.

  2. Introduction of stronger species in the same habitat.

22. What is biological diversity?

Ans: Biological diversity, also known as biodiversity, refers to the wide range of creatures that exist on the planet, as well as their interrelationships and interactions with the environment.

23. Write a short note on the Red Data Book?

Ans: The Red Data Book is a database that maintains track of all endangered animals and plants. The International Union for Conservation of Nature maintains the Red Data Book on a global scale. India also keeps a Red Data Book for flora and animals that can be found in the country.

24. What are flora and fauna?

Ans: Difference between flora and fauna are as follows:

Flora

Fauna

It includes all kinds of plant

It includes all kinds of animals

Study of flora is called botany

Study of fauna is called zoology

They lack mobility

They are mobile

E.g. Rose, Neem

E.g. Dog, Tiger

25. Write the causes of deforestation.

Ans: Various causes of deforestation are as follows:

  1. Urbanisation.

  2. Mining

  3. Natural phenomenon such as flood, drought etc.

  4. Forest fire

  5. Dam construction

  6. Increase in agricultural land.

26. Define endemic species.

Ans: Plants and animals that are indigenous to a certain geographic region are known as endemic species. Example: Kangaroo is endemic to Australia.

27. What do you mean by endangered animals?

Ans: An endangered species is one that is on the verge of extinction, either globally or in a specific geographic area. Example: Giant Panda, Dodo.

28. Define sanctuary.

Ans: A sanctuary is a designated place where animals and plants are brought to dwell and are reserved for wildlife to utilize the environment and natural resources freely.

29. Define the following. 

  1. Biosphere Reserves: Biosphere reserves are enormous areas of protected land intended to conserve wildlife, plant and animal resources, as well as the traditional way of life of the tribal people that live there.

            Example: Nanda Devi, Himachal Pradesh.

  1. National Park: A national park is a protected region where wildlife can easily access habitats and natural resources.

            Example: Kanha National Park, Jim Corbett National Park etc.

30. Define species.

Ans: A species is a group of populations that live together in a certain area and can interbreed; members of a species can only reproduce by mating with members of their own species and not with members of other species.

31. Explain the importance of recycling paper.

Ans: It is important to recycle paper to save trees, water and energy. Paper recycling also preserves landfill space and minimises the quantity of pollution released into the atmosphere as a result of incineration. Recycling paper is beneficial for both humans and the environment.

32. Define ecosystem.

Ans: An ecosystem is made up of all living and nonliving elements of the environment, including plants, animals, and microbes in a given area, as well as non living elements such as climate, soil, rivers, and so on.

33. What is Project Tiger?

Ans: Project Tiger is a project initiated by the Indian government to safeguard the tiger population in 1973. The main goal of this initiative was to assure the survival and conservation of the country's tiger population.

Long Answer Questions: 5 marks

34. What are the consequences of deforestation?

Ans: Consequences of deforestation are as follows:

  1. It decreases tree population leading to carbon dioxide increase in the atmosphere.

  2. It leads to an increase in the temperature of the earth.

  3. It also leads to soil erosion.

  4. Decrease in rainfall and soil fertility.

  5. Increase in air pollution.

  6. It overall affects the earth and can lead to global warming.

35. Write a short note on biosphere reserve.

Ans: Biosphere reserves are places dedicated to biodiversity conservation.

Biosphere reserves aid in the preservation of a region's biodiversity and culture. Other protected sites may be included in a biosphere reserve. Biosphere reserves also serve as a means of preserving the tribals' traditional way of life in the area. There are a total 18 biosphere reserves in India.

Example: Pachmarhi, Madhya Pradesh and Nilgiri, Tamil Nadu

36. Explain reforestation and its useful effects.

Ans: The process of regenerating or replanting forest areas that have been destroyed or damaged for the benefit of civilization is known as reforestation. The terms afforestation and reforestation are interchangeable. Reforestation can happen naturally as well but it is time taking. The Forest Conservation Act in India aims at preservation and conservation of natural forests.

Advantages of reforestation are as follows:

  1. It helps in maintaining oxygen level.

  2. It will help in creating more natural habitat for animals.

  3. It will help in reducing carbon level and help in reducing global warming.


Importances of Important Questions for CBSE Class 8 Science Chapter 7 - Conservation of Plants and Animals

The importance of "Important Questions for CBSE Class 8 Science Chapter 7 - Conservation of Plants and Animals" cannot be overstated. These questions are strategically designed to focus on key concepts related to environmental conservation and the preservation of biodiversity. They serve as a valuable tool for students to gauge their understanding of the chapter, identify areas where they need further clarification, and prepare effectively for examinations. Additionally, these questions encourage critical thinking and problem-solving skills, essential for addressing real-world environmental challenges. They instil in students a sense of responsibility towards our planet and the importance of conserving natural resources, making them not only academically valuable but also instrumental in fostering environmental awareness and sustainability.


Conclusion 

Vedantu's offering of "Important Questions for CBSE Class 8 Science Chapter 7 - Conservation of Plants and Animals" is a pivotal resource for students. These questions serve as a targeted aid in understanding the critical concepts of environmental conservation and the preservation of plant and animal life. Vedantu's commitment to providing these resources underscores their dedication to accessible and quality education. By offering these important questions, Vedantu empowers students to not only excel in their scientific studies but also cultivates a profound awareness of the need for ecological preservation. They serve as a tool for fostering environmental consciousness and equipping students with the knowledge to contribute to a sustainable future, reflecting Vedantu's admirable commitment to education and environmental stewardship.

FAQs on Important Questions for CBSE Class 8 Science Chapter 7 - Conservation of Plants and Animals

Q1. Why is it important to conserve plants and animals according to Chapter 7 Conservation of Plants and Animals of Class 8 Science?

Ans: It is extremely important to conserve plants and animals in order to protect the endangered plants and animals along with their habitat. By conserving living resources, a balanced ecosystem can be maintained which is essential for the survival of many species. Conserving will result in the existence of varieties of species on the Earth. It will help to maintain a healthy and functional environment which is extremely essential for the survival of all organisms. Finally, it will help in restoring the damage which is already done to the environment through activities like afforestation.

Q2. Why does it matter if a species goes extinct?

Ans: It really matters when a species goes extinct because animals and plants depend upon each other. Due to this, within the complex web of relationships, the loss of one species affects others. The whole food web gets disturbed. So, those species which might have been dependent on the extinct species for food might also get extinct due to starvation. The competition for food with other species might occur if the dependent species changes its choice of food on another species. Therefore, extinct species affect the entire ecosystem.

Q3. What is wildlife conservation?

Ans: The practice of preservation, management and protecting plant and animal species and their habitats from being extinct is called wildlife conservation. To put in simple words, it means conservation of plants and animals. To maintain the natural ecosystem, conservation involves restoring, protecting and enhancing activities. By maintaining wildlife sanctuaries, biosphere reserves, zoological parks, botanical gardens and national parks, forests can be conserved. Conservation is important to preserve biodiversity and maintain ecological balance in nature.

Q4. What is drought and desertification?

Ans: The temperature on earth might increase due to deforestation which may disturb the natural water cycle and may reduce rainfall. This condition is called drought where an area receives less rain than usual for a period of time. Soil properties like nutrient content and texture can change due to deforestation. Soil erosion occurs due to less number of trees. The top layer of the soil is removed which will result in exposing the lower, hard and rocky layers. This soil is less fertile and has less humus. Slowly, the fertile land gets converted into deserts because of soil erosion and deforestation. This process is known as desertification which can affect humans, plants and animals.

Q5. List the factors disturbing the biodiversity of a particular area  according to Chapter 7 Conservation of Plants and Animals of Class 8 Science.

Ans: There are both natural as well as man-made factors disturbing the biodiversity of an area. The major factor which is disturbing the biodiversity of a particular area is a human activity involving deforestation. Deforestation means cutting down trees for various purposes like agriculture and urbanisation. The water holding capacity of the soil will decrease due to this. The water movement from the soil surface into the ground will reduce which will lead to floods. Poaching and Industrialisation are also the other factors that disturb biodiversity. To know more about  Chapter 7 Conservation of Plants and Animals of Class 8 Science refer to the notes provided by Vedantu. They are available on the website of Vedantu and their App and that too free of cost.