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Which one of the following processes dur...

Which one of the following processes during decomposition is correctly de- scribed

A

Leaching-Water soluble inorganic nutrients rise to the top layers of soil

B

Fragmentation-Carried out by organisms such as earthworm.

C

Humification-Leads to the accumulation of a dark coloured substance humus which undergoes microbial action at a very fast rate

D

Catabolism -Last step in the decomposition under fully anaerobic condition.

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ALLEN-ORGANISM & ENVIRONMENT AND DEMOGRAPHY-EXERCISE-II
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  2. Secondary productivity is rate of formation of new organic matter by

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  4. Which of the following represent maximum number of species among globa...

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  5. The Air Prevention and Control of Pollution Act came into force in: (A...

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  6. Global warming can be controlled by

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  7. Which one of the following is not used for exsituplant conservation ?

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  8. During sewage treatment, biogases are pro- duced which include

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  9. Which of the following is not an exotic invading species?

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  10. How many of the following statements are CORRECT ? I. India is one o...

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  11. Which of the following is correct for sewage discharge in a river?

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  12. An example of ex situ conservation is

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  13. A location with luxuriant growth of lichens on the trees indicates tha...

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  14. A species facing extremely of ex- tinction in the immediate future 1s ...

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  15. The zone of atmosphere in which the ozone layer is present is called: ...

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  16. The organization which publishes the Red List species is

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  17. What gases are produced in anaerobic sludge digesters?

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  19. Given below is a simplified model of phos- phorus cycling in a terrest...

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