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By how many full-grown trees one tone pa...

By how many full-grown trees one tone paper is made?

A

17

B

27

C

7

D

37

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MBD-CONSERVATION OF PLANTS AND ANIMALS-EXAMPLE
  1. Pachmarhi Biosphere Reserve has particular area are called:

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  2. The plants and animal found in a particular area are called:

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  3. By how many full-grown trees one tone paper is made?

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  4. Fill in the blanks: The removal of the top soil layer is known as ………...

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  5. Fill in the blanks: Wild plants and animals in the forest constitute ...

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  6. Fill in the blanks: Plants need …………. Gas for photosynthesis.

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  7. Fill in the blanks: The conversion of fertile land into deserts is ca...

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  8. Fill in the blanks: ………….is that part of the earth in which living or...

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  9. Fill in the blanks: ……….refers to the variety in life existing on ear...

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  10. Fill in the blanks: Pachmarhi Biosphere Reserve consists of one nati...

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  11. Fill in the blanks: The plants and animals found in a particular area...

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  12. Fill in the blanks: …..species are exculusively found in a particular...

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  13. Fill in the blanks: …………..is a group of populations which are capable...

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  14. Define deforestation.

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  15. Give some natural causes of deforestation.

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  16. What is the result of decrease in rainfull and fertility of soil?

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  17. Which gas is used by plants for photosynthesis ?

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  18. What is the result of increased amount of carbon dioxide in the atmost...

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  19. What causes draught?

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  20. Define Desertification.

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