The correct hypothesis is that: Cooler temperatures cause leaves to change color faster; option A
A hypothesis is a statement put forward to explain an observation without having done prior experiments to confirm or disprove the statement.
A controlled experiment is an experiment in which no changes are introduced by the researcher on the variables of the experiment.
Considering a controlled experiment that answers the question: “How does temperature affect the color of leaves on a tree?”
The hypothesis will be that either temperature affects the color of leaves on the tree or that temperature has no effect on the color of the leaves on the tree.
In conclusion, a hypothesis tries to explain an observation.
Learn more about hypothesis at: https://brainly.com/question/606806
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