Environmental Sciences, asked by ZaimaJune723, 1 year ago

What is the order of annual energy usage by mankind?

Answers

Answered by Anonymous
3
normally, uses of energy by A health human in a day =2000kcal we know,

1kcal=4200joules

so, uses of energy by humankind in a day

=2000×4200 joules

=8.4×1(10²)³joules

I hope this is helpful


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