In cross sectional research, a researcher compares multiple segments of the population at the same time.
<h3>What is cross sectional research?</h3>
It is a type of research design in which data are collected from many different individuals or segments.
This data are analyzed at one specific point and time.
Therefore, a cross sectional researcher compares multiple segments of the population at the same time.
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The problem that the northwest ordinance created what the civil war. the northwest ordinance made slavery and involuntary servitude were forbidden in the Northwest Territory. It made the Ohio River the dividing line between the north and the south.
The answer is: Scientists study how things work while engineers create new things
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C.The 1995 Oklahoma City bombing
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