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Brums [2.3K]
3 years ago
12

When are fossil fuels harmful to the environment?(No links please!!)

Biology
2 answers:
enyata [817]3 years ago
6 0

Explanation:

Option first is the correct one

Genrish500 [490]3 years ago
4 0

Answer:

A.when their energy is harnessed by humans

Explanation:

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