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

A)when their energy is harnessed by humans

B)when they are first created


C)when they leach into the water from underground

User Wueli
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2 Answers

5 votes

Answer:

A.when their energy is harnessed by humans

Step-by-step explanation:

User Zingy
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4.3k points
4 votes

Step-by-step explanation:

Option first is the correct one

User Sezanzeb
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