Question

how does increasing light intensity affect photosynthesis? it increases photosynthesis until it levels off. it decreases photosynthesis indefinitely. it increases photosynthesis indefinitely. it has no effect on photosynthesis.

Explanation:

In photosynthesis, light is an essential energy - source. Initially, as light intensity increases, the rate of photosynthesis increases because more light energy is available for the light - dependent reactions. However, there are other limiting factors such as the amount of chlorophyll, carbon dioxide concentration, and temperature. So, at a certain point, increasing light intensity further will not increase the rate of photosynthesis, and it levels off.

Answer:

It increases photosynthesis until it levels off.