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Question
Observe the following biogeochemical cycle.
(i) Mention the nutrient in the given cycle.
(ii) Write the activities from 'A' to 'D'.
(i) Mention the nutrient in the given cycle.
(ii) Write the activities from 'A' to 'D'.
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Solution
- A= Photosynthesis: Carbon dioxide is absorbed by producers (life forms that make their own food e.g. plants) to make carbohydrates in photosynthesis.
- B= Respiration: Carbon enters the atmosphere as carbon dioxide from respiration (breathing) and combustion (burning).
- C= Combustion
- D= Decomposition: The dead organisms (dead animals and plants) are eaten by decomposers in the ground. The carbon that was in their bodies is then returned to the atmosphere as carbon dioxide. In some circumstances, the process of decomposition is prevented. The decomposed plants and animals may then be available as fossil fuel in the future for combustion.
- Nutrient in the given cycle is carbon dioxide.
- A= Photosynthesis: Carbon dioxide is absorbed by producers (life forms that make their own food e.g. plants) to make carbohydrates in photosynthesis.
- B= Respiration: Carbon enters the atmosphere as carbon dioxide from respiration (breathing) and combustion (burning).
- C= Combustion
- D= Decomposition: The dead organisms (dead animals and plants) are eaten by decomposers in the ground. The carbon that was in their bodies is then returned to the atmosphere as carbon dioxide. In some circumstances, the process of decomposition is prevented. The decomposed plants and animals may then be available as fossil fuel in the future for combustion.
- Nutrient in the given cycle is carbon dioxide.
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