Question

Explain the following cycles in your
own words with suitable diagrams.
a. Carbon cycle.
b. Nitrogen cycle.
c. Oxygen cycle.
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Answer 1

Answer:

Humans have changed the natural carbon cycle by burning fossil fuels, which releases carbon dioxide into 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: the series of processes by which carbon compounds are interconverted in the environment, involving the incorporation of carbon dioxide into living tissue by photosynthesis and its return to the atmosphere through respiration, the decay of dead organisms, and the burning of fossil fuels.