Why are tropical air masses warmer than cold air masses? What region is responsible for warm, humid weather at times during the summer in the Central Plains states?

What region is responsible for cool, humid weather at times during winter for eastern states?

What region is responsible for hot, dry weather during the summer in the desert southwest?

 Air masses are relatively large bodies of air that are fairly horizontally uniform in characteristics. They may extend across an entire continent and are relatively uniform in temperature and moisture content. The boundary separating two different air masses is called a front, and it is along these fronts that a substantial amount of our weather occurs.

Explanation:

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.

for e2020. the answer would be some directions from the mountain range so we can find mt. whitney. to locate which direction is north, you should use a   compass. this would not only find mt. whitney, but also becuase of this long paragraph you would get points because it's not like anyone actually reads your work becuase once they read the first sentence it sounds dumb enough to not read becuase i'm not good at answering this but the answer is compass for your benefit.

for e2020 ; -;