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Which research question is most effective? A. How did natural gas affect the ozone layer in 1975? B. How do fossil fuels affect the atmosphere? C. When were fossil fuels first discovered? D. What are fossil
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Which research question is most effective?

A. How did natural gas affect the ozone layer in 1975?

B. How do fossil fuels affect the atmosphere?

C. When were fossil fuels first discovered?

D. What are fossil fuels?

User Tiramonium
by
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1 Answer

6 votes

Answer:

b

Step-by-step explanation:

User Comic Sans MS Lover
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