Solution of Chapter 7. Conservation of Plants and Animals (NCERT Science Exemplar Book)

Chapter Exercises

Multiple Choice Questions

1

Wild buffalo is an endangered species because

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2

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

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3

Which one of the following statements is true about a Biosphere Reserve?

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4

The place meant for conservation of biodiversity in their natural habitat are

(i) Zoological garden


(iii) Wildlife sanctuary


(ii) Botanical garden


(iv) National park

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5

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

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6

Which of the following feature is correct for a wildlife sanctuary?

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7

Which statement is incorrect about endangered species?

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8

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

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9

The Red Data Book keeps a record of all the

(i) endemic species.


(ii) extinct species.


(iii) endangered plants.


(iv) endangered animals.

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10

Migratory birds fly to far away areas during a particular time of a year. Which of the following conditions present in their habitat during that time are responsible for this behaviour?

(i) Unavailability of food.


(ii) Extreme weather conditions.


(iii) Over crowding.


(iv) Lack of nesting areas.

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11

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

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Very Short Answer Type

12

Why is it important to conserve forests?

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13

Mention any one action that you have undertaken to conserve trees.

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14

State whether the following statements are True or False. Correct the false statements.

(i) There can be a wildlife sanctuary within a biosphere reserve.


(ii) Plants of a particular area are collectively termed as fauna.


(iii) Deforestation leads to an increase in the water holding capacity of the soil.


(iv) Bison is an endemic fauna of Pachmarhi Biosphere Reserve.

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15

Can a forest regenerate naturally in a short period of time?

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16

Name the first Reserve Forest of India.

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Short Answer Type

17

Why are wildlife sanctuaries important for the conservation of plants and animals?

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18

Why are endemic organisms in greater danger of becoming extinct?

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19

How are even small animals important in an ecosystem?

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20

A new species X is introduced in a forest. How is it likely to affect the local species of that area?

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21

Does soil erosion affect the fertility of soil? How?

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22

What is the unique feature of the biodiversity found in Panchmarhi Biosphere Reserve?

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23

Mention the aim of Forest (Conservation) Act.

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24

What is biodiversity?

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Long Answer Type

25

Is deforestation associated with global warming? Explain.

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26

How does deforestation lead to frequent floods and droughts?

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27

Why should we save paper?

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