Which gas increases in the atmosphere as a result of photosynthesis?

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Multiple Choice

Which gas increases in the atmosphere as a result of photosynthesis?

Explanation:
During photosynthesis, plants and algae use sunlight to convert carbon dioxide and water into sugar, and in the process they release oxygen gas into the air. The oxygen comes from the water molecules split during the light-dependent reactions, so oxygen is added to the atmosphere. The other gases aren’t produced this way: carbon dioxide is used up to make sugar, not increased, and nitrogen and methane aren’t directly produced by photosynthesis.

During photosynthesis, plants and algae use sunlight to convert carbon dioxide and water into sugar, and in the process they release oxygen gas into the air. The oxygen comes from the water molecules split during the light-dependent reactions, so oxygen is added to the atmosphere. The other gases aren’t produced this way: carbon dioxide is used up to make sugar, not increased, and nitrogen and methane aren’t directly produced by photosynthesis.

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