Which of these is the BEST definition of "civilization" for a history class? A) the way people talk B) a group that has a culture C) the ability to walk upright D) how sophisticated people behave

pv=nrt

explanation:

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but

im doing test rn im going with 2 but ill give answer if itss wrong,   : )