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Ivan
3 years ago
12

This is a is a natural substance that cannot be re-made, re-grown, or regenerated as fast as it is used.

Biology
2 answers:
Vesna [10]3 years ago
3 0
Fossil Fuels is a perfect example
hoa [83]3 years ago
3 0
Random guess, but oil/coal? It takes millions of years to form and people are using it up really quickly
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