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krek1111 [17]
3 years ago
5

Which substance provides humans with their main source of energy

Biology
2 answers:
AveGali [126]3 years ago
5 0

A substance that provides humans with their main source of energy would be; food.

Natalka [10]3 years ago
5 0
Food, would be the substance that gives people energy
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6 0
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