During a year, plants never use 100% of the incoming solar radiation for photosy
ID: 259964 • Letter: D
Question
During a year, plants never use 100% of the incoming solar radiation for photosynthesis. What is a reasonable explanation for this?
Plants do not intercept all incoming light, as some light will strike water, bare soil, or rock. The pigments that drive photosynthesis absorb all of the wavelengths of light that are available; however, some of the light is subsequently reflected. At least 75% of all incoming light is reflected, absorbed, or scattered back by clouds in the atmosphere. Plants cannot photosynthesize as well in warm temperatures as in cold temperatures.Explanation / Answer
The right answer is 1st: Plants do not intercept all incoming light, as some light will strike water, bare soil, or rock.
Explanation: The sunlight travels from the sun and comes to the plant but may barriers are presents between that like Water, rocks and bare soil. In hilly region sunlight strike by rocks sometime in the plane region too. Same for water and arid plants.
2nd option is wrong because pigment absorbs a specific wavelength of light.
The 3rd and 4th options are also wrong because 75% light is not reflected by clouds. and there are many plants which can photosynthesize in warm and cold temperature.
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