Look at this for ur answer
Answer:
D geothermal
Geothermal energy is harnessed beneath the Earth's surface.
This reaction is called a synthesis.
No organism is always the first step, except in a wide sense, plants. In the water, plankton is found in first but whereas on land, plants or seeds are eaten first.
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Atomic Mass is determined by the number of protons plus the number of neutrons.