Final answer:
Hypotheses are tested through experiments to establish cause-and-effect relationships, providing scientifically supported explanations.
Explanation:
A hypothesis is tested by conducting experiments to determine its validity. Scientists formulate hypotheses to provide tentative explanations that can be scientifically tested through systematic observations or measurements under controlled conditions.
Experimentation is essential in establishing cause-and-effect relationships between variables. Researchers test hypotheses through experiments; if the results agree with predictions, the hypothesis is considered valid, but if they contradict it, scientists may need to develop alternative hypotheses.
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