Question

Select the correct answer.

Which is the best example of a strong research question?

A.
Do you care about vehicle gas emissions in the air?
B.
How do you reduce air pollution?
C.
Why is it important to be knowledgeable about air pollution?
D.
What is the most significant effect of reducing vehicle gas emissions in the United States?

Answer 1

D. What is the most significant effect of reducing vehicle gas emissions in the United States?

Step-by-step explanation:

The other questions are asking for opinions.

Answer 2

D. What is the most significant effect of reducing vehicle gas emissions in the United States?