Answer:
i think its A although i'm not sure, because multimodal transport means that a combination of at least two or more different modes to move your cargo from a place in one country to another country. i'm sorry if i'm wrong.
Explanation:
I don't understand your question. Give more detail. <span />
Were are the answer choices
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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<span>Answer: a "confidence estimate" .
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