How does you body get energy?
a)breaking down food molecules and building new molecules

b)converting light energy to chemical energy

c)converting water to nutrients

d)taking in oxygen from your lungs

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation

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Approximately what wavelength of light is best absorbed by chlorophyll a