Answer:
Seven days after a spring tide, the sun and moon are at right angles to each other. This produces moderate tides known as neap tides, meaning that high tides are a little lower and low tides are a little higher than average. Neap tides occur during the first and third quarter moon, when the moon appears "half full.
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Answer:
Serves as a baseline to compare experiment results to
Explanation:
The control group recieves no minipulation from the independent variable of an experiment which provides a baseline to compare the results to and evalutate the effects of the minipulated variable.