Which of the following is using primarily kinetic energy
a two friends drinking a soda on a park bench
b a bucket of paint sitting on a ladder
c a bowling ball rolling down a bowling alley
d a furnace warming up a house on a cold day

C) a bowling ball rolling down a bowling alley

Explanation:

Potential energy is the energy possessed by an object by virtue of its position.

Kinetic energy is the energy possessed by an object by virtue of its motion.

a) two friends drinking a soda on a park bench possess potential energy as they are not in motion.

b)  a bucket of paint sitting on a ladder  possess potential energy as they are not in motion.

c) a bowling ball rolling down a bowling alley possess kinetic energy as it is in motion.

d) a furnace warming up a house on a cold day possess potential energy as it is not in motion.

Thus a bowling ball rolling down a bowling alley is  primarily using kinetic energy.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.