Answer: A) it doesn’t represent the way that some hypotheses might be rejected.
Explanation: Just helped someone answer this question.
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In the experiment with plants being grown at different temperatures to see how it will affect a plant's growth, the control group is the plant being grown at room temperature. The experimental group includes the three plants being grown at temperatures greater than room temperature.
If a car's acceleration is negative, I'd say the car is slowing down.
