Answer:
Motion is defined as a change of position. How we perceive motion depends on our frame of reference. Frame of reference refers to something that is not moving with respect to an observer that can be used to detect motion.
Explanation:
D.
The concentration of reactants and the concentration of products are constant.
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friction
the resistance that one surface or object encounters when moving over another.
Incomplete Q.
GOOD LUCK FOR THE FUTURE! :)
answer A because it's not sustainable and it is overfishing a population
