Boyle's Law represents the relationship of volume as pressure is changed. The constants of Boyle's Law are volume and temperature
pressure and volume
pressure and temperature
temperature and number of molecules of gas
pressure and number of molecules of gas

Answer temperature and number of molecules of gas.
Please ignore this question i just wanted to put the right answer out there cause the other question had it wrong and i couldnt type there

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.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8