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Acid rain is caused by increase in the a...

Acid rain is caused by increase in the atmo- ,spheric concentration of

A

`O_(3)` and dust

B

`SO_(2)` and `NO_(2)`

C

`SO_(3)` and `CO`

D

`CO_(2)` and CO

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ALLEN-ORGANISM & ENVIRONMENT AND DEMOGRAPHY-EXERCISE-II
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  2. Which of the following is true:-

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  4. High value of BOD (Biochemical Oxygen Demand) indicates that

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  6. Rachel Carson's famous book "Silent Spring" is related to

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  7. Most animals are tree dwellers in a

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  8. In which of the following both pairs have correct combination?

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  9. Vertical distribution of different species occupying different levels ...

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  11. In an ecosystem the rate of production of or- ganic matter during phot...

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  12. Secondary Succession takes place on/ in

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  13. The following graph depicts changes in two populations (A and B) of he...

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  18. Increase in concentration of the toxicant at successive trophic levels...

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