What type of air mass would have the most density?

I have a test coming up and I need help, please. Thanks in advance!

1 Answer
Jan 31, 2018

The cooler ones.


In science, it is learnt that warm air is much less dense than cold air, so as air masses are made up of air, the cold ones are denser and the warm ones are less dense. That is why during frontal rainfall, warm air rises over cool air.