Read about "Boyles law"
http://www.grc.NASA.gov/WWW/K-12/airplane/aboyle.html
As temperature increases the volume OR the pressure of a mass of air will increase. If the volume of the air mass is constrained (inside a container of fixed size) the pressure will go up. If the mass of air is allowed to expand freely it will become less dense (lighter per unit volume)
As the air gets warmer, it's ability to hold water vapor increases.
As the air gets warmer, it's ability to hold water vapor increases.
Because the snowflakes will melt more as the air gets closer to freezing, which allows them to "stick" together as they fall and grow larger.
it gets warmer
As the air gets warmer, it's ability to hold water vapor increases.
As the air gets warmer, it's ability to hold water vapor increases.
it gets warmer
it gets warmer
it evaporates
No. Condensation will occur when they air gets cooler.
it gets warmer as it rises
it gets warmer as it rises