Which of the following would not be considered part of the direct input of energy from the sun?
a. solar energy
b. hydropower
c. biomass
d. geothermal
e. wind
Answer: D
Which of the following would not be considered part of the direct input of energy from the sun?
a. solar energy
b. hydropower
c. biomass
d. geothermal
e. wind
Answer: D