What career field/job would utilize ppm units A environmental jobs
B Medical fields
C Jobs at the brewery
D Jobs in analytical chemistry

Jobs in analytical chem tht is because it’s parts per million and when calculating the amount of an element in a mole

Ithink the answer is c i hope it my friend message me if i’m wrong and i’ll change my answer and fix it for you

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place.