Question

A part of photosynthetically fixed CO2 goes back to the atmosphere due to​

Answer 1

Answer:

About 50% of all CO2 taken in by photosynthesis goes back to the atmosphere soon after through plant respiration.

Explanation:

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Answer 2

A part of photosynthetically fixed carbon dioxide(CO₂) goes back to the atmosphere due to​ respiration and decomposition.

Green plants are the main agents of carbon dioxide fixation by the process of photosynthesis. CO₂ goes back into the atmosphere by the process of respiration and decomposition as,

• Plants release CO₂ into the atmosphere as a byproduct during respiration.

• During photosynthesis, they produce simple carbohydrates taking CO₂ from the atmosphere, and water from roots in presence of sunlight and chlorophyll.
• The stored foods in plants are eaten by the primary consumers and those animals and other organisms release CO₂ into the atmosphere through respiration as well as through animal wastes.
• The organism's dead bodies are decomposed by the action of microbes in the soil to form fossil fuels which in turn are used by industries releasing CO₂ again back into the atmosphere.