Question

Describe in brief about Carbon, Nitrogen Cycle?

Answer 1

Answer:

Global warming is a consequence of increased carbon dioxide and other greenhouse gases in the atmosphere. The nitrogen cycle begins with nitrogen gas in the atmosphere then goes through nitrogen-fixing microorganisms to plants, animals, decomposers, and into the soil.

Answer 2

Carbon Cycle :

1. Conversion of CO2 into glucose by green plants in the pressence of sunlight during photosynthesis.
2. Usage of carbonates dissolved in sea water by marine animals to make their shells.

Nitrogen Cycle :

• Fixing of Nitrogen by N2 fixing bacteria which are found in root nodules of legumes or which are free living. Ammonification by bacteria in soil, conversion of ammonia to nitrates or nitrites to nitrates by different type of bacteria. Nitrates to nitrogen in air by different bacteria.

Explanation :

• Refer to the attachment (a) Carbon cycle (b) Nitrogen cycle.