Which gas is released by plants during photosynthesis?

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Multiple Choice

Which gas is released by plants during photosynthesis?

Explanation:
During photosynthesis, light energy splits water in the chloroplasts, releasing oxygen gas as a byproduct. The light-dependent reactions drive this water splitting, so oxygen emerges while carbon dioxide is taken in to build sugars. Nitrogen isn’t produced in this process, and hydrogen isn’t released as a separate gas; the hydrogen from water ends up helping form organic molecules. So the gas released is oxygen.

During photosynthesis, light energy splits water in the chloroplasts, releasing oxygen gas as a byproduct. The light-dependent reactions drive this water splitting, so oxygen emerges while carbon dioxide is taken in to build sugars. Nitrogen isn’t produced in this process, and hydrogen isn’t released as a separate gas; the hydrogen from water ends up helping form organic molecules. So the gas released is oxygen.

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