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Fossil Fuels are considered nonrenewable resources because they..... a. burn so quickly
b. are in such high demand
c. take millions of years to form
d. pollute the air



Answer :

It is choice "c" because a nonrenewable source is one that is consumed more rapidly than it is produced.
It is NOT "a" because while they may burn quickly, that isn't what makes it a nonrenewable source. The problem or factor that makes it nonrenewable source is it's inability to produce more faster than it is consumed.

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