thesusan7494
thesusan7494
01.03.2021 • 
Biology

HELP! Solar, biomass, geothermal, wind, and hydropower energy are all renewable sources of energy. They are called renewable because they: a. Are clean and free to use

b. Can be converted directly into heat and electricity

c. Can be replenished by nature in a short period of time

d. Do not produce air pollution

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