TIME REMAINING 53:27
A student conducted a comparative investigation to test the hypothesis that different areas of New York City have
different levels of air pollution.
Which is a likely benefit of this comparative investigation?
It provides her with a large amount of information about air pollution in New York City,
It provides her with results that are valid for a long time.
It requires that she observe a limited number of variables.
It allows her to learn about the causes and effects of air pollution in major cities.
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