Which law states object’s will remain at rest or in a uniform motion in a straight line unless acted upon by an external unbalanced forces?

A. Newton’s first law
B. Newton’s second law
C. Newton’s third law
D. Newton’s law of universal gravitation.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

your answer is going to be physical weathering