During daytime photosynthesis, DO and pH will?

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Multiple Choice

During daytime photosynthesis, DO and pH will?

Explanation:
During daytime photosynthesis, the system is actively producing oxygen and consuming carbon dioxide. Dissolved oxygen increases because photosynthetic organisms release O2 as a byproduct. Carbon dioxide is taken up to form organic matter, which reduces carbonic acid in the water, causing a rise in pH. So both dissolved oxygen and pH tend to increase under daylight conditions.

During daytime photosynthesis, the system is actively producing oxygen and consuming carbon dioxide. Dissolved oxygen increases because photosynthetic organisms release O2 as a byproduct. Carbon dioxide is taken up to form organic matter, which reduces carbonic acid in the water, causing a rise in pH. So both dissolved oxygen and pH tend to increase under daylight conditions.

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