The relevance of Chemistry herbal
medicine
THE RELEVANCE OF CHEMISTRY
IN HERBAL MEDICINE

answer; the enthalpy of both the return air and the outside air. ;

i would say b

explanation:

but i think i would need more information than that

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

i think that the answer is c