In apex which change usually accompanies a cold spell in minnesota

The correct answer is "Polar jet streams moving south".

Explanation:

During winter, polar jet streams (bands of strong and cold wind) moves to the south. This happens when the North Pole becomes colder but the equator remains with the same temperature. This change usually results in a cold spell in Minnesota, since this state of the north is directly affected by polar jet streams moving south.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.