CBSE Class 8 Science Chapter 5 Conservation Of Plants MCQs

CBSE Class 8 Chapter 5 Conservation of Plants And Animals MCQs With Answers PDF Review Exercise Multiple Choice Questions

Question 1. There is a list of some events.

1. Tilting of soil for sowing seeds on a deserted land.
2. Cutting down trees to make tables and chairs.
3. Establishing a forest on land that had trees before.
4. Clearing forests for building houses.

Deforestation will be caused by which of the following events?

1. 1 and 2
2. 3 and 1
3. 2 and 4
4. 2 and 3

Answer: 3. 2 and 4

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Question 2. How is a decline in trees connected to a water shortage?

1. Deforestation increases Earth’s temperature, resulting in less rainfall
2. Deforestation decreases Earth’s temperature, which reduces the moisture content of the air
3. Deforestation disturbs the soil composition, leading to high water retention by the soil
4. Deforestation prevents the absorption of water by the plants, reducing the groundwater level

Answer: 1. Deforestation increases Earth’s temperature, resulting in less rainfall

Question 3. Deforestation increases the level of one of the following in the atmosphere.

1. Ozone
2. Carbon dioxide
3. Oxygen
4. Water vapour

Answer: 2. Carbon dioxide

Question 4. In our country, large patches of forests are being cleared for the cultivation of crops. The environmental impact of such a practice will lead to

1. Soil erosion
2. Soil pollution
3. Soil conservation
4. Soil fertility

Answer: 1. Soil erosion

Question 5. The amount of soil erosion is lower in areas with more trees. How do trees stop the Earth from eroding?

1. The roots of the trees hold die top layer of the soil firmly
2. The trees absorb more sunlight, which increases soil density
3. The trees store extra food in the soil, which increases the soil content
4. The trees add dead leaves to the soil, which increases the soil.

Answer: 1. The roots of the trees hold die top layer of the soil firmly

Question 6. Which one of the following changes may occur due to desertification?

1. A decrease in atmospheric temperature
2. Increase in water holding capacity of soil
3. Increased chances of floods
4. Conversion of fertile land into a desert

Answer: 4. Conversion of fertile land into a desert.

Question 7. Cutting down trees and clearing forests are common construction methods for industries. What is its potential impact on nature?

1. A decrease in the number of wildlife
2. Sudden boost in the plant growth
3. Availability of more food for wildlife
4. Increase in the percentage of land occupied by trees

Answer: 1. Decrease in the number of wildlife

Question 8. Which one of the following statements is true about a biosphere reserve?

1. It is a protected area where only endemic species live
2. It is meant only for the conservation of plants and animals
3. It is meant to conserve both the biodiversity and the culture of that area
4. There are no other protected areas within its limits

Answer: 3. It is meant to conserve both the biodiversity and the culture of that area

Question 9. Radha went for a trip to a Pachmarhi Biosphere Reserve in Madhya Pradesh and Jim Corbett National Park in Uttarakhand. Which common activity is likely to be observed in both the protective areas?

1. Both provide a protective environment for fauna only
2. Both provide shelter to humans as well as wildlife
3. Both allow human activities for interaction with wild animals
4. Neither interferes with the natural environment of the wildlife

Answer: 4. Both do not interfere with the natural environment of the wildlife

Question 10. The place of living of an organism in the environment is called

1. Home
2. Habitat
3. Resort
4. Reservoir

Answer: 3. Resort

Class 8 Science Most Important Mcqs From The Conservation Chapter

Question 11. What do the black buck, elephant, python, and golden cat together represent in a forest?

1. Fauna
2. Flora
3. Ecosystem
4. Species

Answer: 1. Fauna

Question 12. Them Is n list of some organisms.

1. Star fish
2. Cheetah
3. Fern
4. Shrub
5. Cactus
6. Wolf

Which choice properly categorises the flora and fauna?

Answer: 2.

Question 13. Which one of the following statements is true about endemic species?

1. They are found exclusively in a specific habitat
2. Endemic species can never become endangered
3. They are found only in zoos and botanical gardens
4. They are not affected by the destruction of their habitat

Answer: 1. They are found exclusively in a specific habitat

Question 14. Satpura National Park and Bori sanctuary are present in the Pachmarhi Biosphere Reserve. How do these regions contribute to the protection of wildlife and plants?

1. These large areas provide artifical habitat to wildlife
2. These large areas conserve organisms and their habitats
3. These large areas control the number of wildlife by preventing natural breeding
4. These large areas prevent the interaction of organisms with wildlife to keep them safe

Answer: 2. These large areas conserve organisms and their habitats