At which approximate light intensity does the oxygen production begin to level off? a. 40% b. 60% c. 80% d. 100%

Answer;

-40% or 40 percent

Explanation;

-The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.

-Without enough light, a plant cannot photosynthesize very quickly; even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis, until some other factor (a limiting factor) becomes in short supply.

-An increase in light intensity will produce an increase in the rate of photosynthesis until a level of light intensity is reached (normally 40%) above which the rate does not increase because the light saturation point has been reached and another factor (CO2 concentration or temperature) is limiting.

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

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