According to the kinetic molecular theory, as the volume of an enclosed gas increases:
the number of particle impacts per unit area increases
the temperature must change
the total number of particle impacts increase
the number of particle impacts per unit area decreases

d. the number of particle impacts per unit area decreases

hope it helps :)

mark brainliest!!

the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

the answer would be a