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About the total number of species presen...

About the total number of species present on earth, a more conservative and scientifically sound estimate made by

A

Robert May

B

Robert Costanza

C

Alexander von Humboldt

D

Both (a) & (b)

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The correct Answer is:
A
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PHYSICS WALLAH-BIODIVERSITY AND CONSERVATION-LEVEL-2
  1. In IUCN Red list (2004), extinction of 784 species includes:

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  2. The given pie diagram represents the proportionate number of species o...

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  3. About the total number of species present on earth, a more conservativ...

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  4. Species diversity increases as one proceeds from:

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  5. Which of the following represents the regulative function of forest?

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  6. Match the following

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  7. The Earth Summit held inRiodeJaneiroin 1992 was called

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  8. The main reason of disturbance of biological diversity is

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  9. Best method to preserve the wild relatives of plants:

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  10. What is a keystone species?

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  11. In your opinion, which is the most effective way to conserve the plant...

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  12. Match the following

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  13. India relishes a history of relishes a history of religious and cultur...

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  14. One of the most important functions of botanical gardens is that

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  15. The extinction of passengers pigeons was due to:

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  16. One of the ex-situ conservation methods for endangered species is:

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  17. All of the following hypothesis support the existence of greater biolo...

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  18. Which of the following is not a cause for loss of biodiversity ?

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  19. Broadly utilitarian' argument for the conservation of biodiversity do...

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  20. Select the incorrect matched pair.

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