contestada

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?

Respuesta :

The research question that is most effective is A. How did natural gas affect the ozone layer in 1975?

What is a research question?

It should be noted that a research question simply means the question that the researcher seeks answers to.

In this case, the research question that is most effective is "How did natural gas affect the ozone layer in 1975?". It must reflect what the researcher wants.

Learn more about research on:

brainly.com/question/25257437

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