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Most of Earth's usable chemical energy came to Earth as solar energy but has been stored as A) fossil fuels. B) nuclear fuels. C) ultraviolet waves. D) geothermal energy.

User Nayeem
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A: fossil fuels I believe is the answer

User Techvice
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Answer:

A

Step-by-step explanation:

Fossil fuel are energy buried within the earth that could used as energy source for consumption. Most sources of earth's energy comes from fossil fuels

User Stephen Johnson
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