The answer would be the first one
Identifying the verbal form and its function in the sentence
<em>Could you help me find my running shoes?</em>
running is a participle functioning as an adjective and it defines what kind of shoes they are, which means they are not, for example, dancing shoes or hiking shoes.
The research question that is most effective is A. How did natural gas affect the ozone layer in 1975?
<h3>What is a research question?</h3>
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.
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