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Which one of the following processes dur...

Which one of the following processes during decomposition is correctly described?

A

Leachi ng – Water soluble ino rganic 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

Catab olism – La st step i n the decomposi tion under fully anaerobic condition

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The correct Answer is:
B
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  3. What is true for ecotone ? (a) It is a transition zone in between tw...

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  5. In any grassland and forest community edge species are –

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  6. Which one of the following is not a functional unit of an ecosystem

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  7. Which of the following ecosystems has the highest productivity?

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  8. Match Column-I with Column-II and select the correct answer from the c...

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  9. Mass of living matter at a trophic level in an area at any time is cal...

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  10. Which of the following group is essential component for survival of an...

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  11. In an ecosystem, which one shows one-way passage

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  12. The concept of ecological pyramids was given by

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  13. Guild is

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  15. Which of the following pair is a sedimentary type of biogeochemical cy...

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  16. About 70% of total global carbon is found in

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  17. Under certain conditions soil nutrients get tied up with the biomass o...

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  18. Out of the total proposed cost of various ecosystem services, cost of ...

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  19. In an ecosystem, four major interdependent components were in the give...

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