It is by gaining! I just learned this in school. Hope this helps:)
Like a then it would be A something I guess it goes like that
Answer: Yes
Explanation:
does hot air rise
er substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward. This is the concept used in the hot air balloons.
