Select all characteristics an air mass would have in common. not just temperature and humidity temperature
wind
pressure
humidity

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Explanation:

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An air mass has roughly the same temperature and humidity. Air masses form over regions where the air is stable for a long enough time. The air takes on the characteristics of the region. Air masses move when they are pushed by high level winds

Explanation:

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.

i think its 5049.

i hope this !