All three processes (decomposition, photosynthesis andrespiration) can occur in

Question

All three processes (decomposition, photosynthesis andrespiration) can occur in the Light Bottles. Oxygen is producedduring photosynthesis and consumed by respiration and decompositionin the bottle.

In a healthy lake, ample photosynthesis occurs. In this case,which dissolved oxygen test bottle should have the highest levelsof oxygen?

a. Time 0 orinitial bottle filled with lake water but not incubated inlake b. Light bottlewith lake water incubated for 24 hours c. Dark bottlewith lake water incubated for 24 hours

Explanation / Answer

option (a) at begining the rate of photosynthesis is high anddecomposition is very low

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