DENDROLOGY

Detailed explanation-1: -As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis.

Detailed explanation-2: -We know that when light intensity is low, the synthesis of chlorophyll decreases. We also know that when the amount of chlorophyll decreases, the rate of photosynthesis decreases as well. Therefore, the rate of photosynthesis decreases when light intensity is low.

Detailed explanation-3: -As photosynthesis occurs at all wavelengths of the visible spectrum, its rate is highest in polychromatic light, that is white light, which is a combination of different wavelengths.

Detailed explanation-4: -The rate of photosynthesis increases linearly as the intensity of light is gradually increased from low to high. When the intensity of light is high, the rate of photosynthesis does not increase further as other factors become limiting.