Question

Which of the following are mainly cycled through the processes of photosynthesis and cellular respiration?

Answer 1

CO2, or Carbon Dioxide.

Carbon dioxide is taken in during photosynthesis and released during cellular respiration.

Answer 2

The compound that is cycled by the processes of photosynthesis and cellular respiration is carbon dioxide.

What is carbon dioxide?

Carbon dioxide is a gas, that is present on the earth in 0.033 percentage. In photosynthesis, carbon dioxide is used and in cellular respiration, CO2 is expelled out.

Thus, the correct option is carbon dioxide.

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