Multiple choice The absorption spectrum of chlorophyll explains why chlorophyll is a green pigment approximates the action spectrum of photosynthesis shows that some colours of light are absorbed more than others All of the above are correct Reveal answer Fill a bubble to check yourself D Correct answer Explanation The absorption spectrum of chlorophyll is useful in identifying the green colour pigment of chlorophyll. It approximates the action spectrum of photosynthesis. It also shows that some colours of light are absorbed more than others