ICSE 2006 : SCIENCE Paper 3 (Biology) -

SCIENCE
Paper 3 (Biology) - 2006
(One hour and a half)

Question 1
(d) Given below is a diagrammatic representation of the Nitrogen cycle in nature. Study the same and answer the questions that follow:-

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12.
(i) Name the compound A that is formed during a thunderstorm.

13.
(ii) Name the compound B that is released in the soil by the decay of plants.

14.
(iii) Name the process C that is responsible for B being converted back to nitrogen.

15.
(iv) What are nitrifying bacteria?

16.
(v) State the role played by leguminous plants in the Nitrogen cycle.

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