Your answer should be A. by observing the formation of sedimentary rocks.
Answer:
an experiment
Explanation: Any experiment you do to benefit the world in the name of science
The answer is the control group.
the group in an experiment that is not exposed to the tested variable is called the control group
Answer: Two smaller molecules join together after a water molecule is removed from between them. Energy is absorbed for bond formation: because energy is absorbed to make bonds, synthesis reactions are energy absorbing reactions.
Explanation: