It moves faster and rises
It depends on the material.
i dont know try it and see what happens
Because it is hot on on side and cooler on the other side
It becomes hot polluted air.
To help them move over hot surfaces.
This happens when the engine is too hot. This increases the flow air over the surface
If you swim in the water or touch the water, it is a bit warm compared to the air that surrounds you. This usually happens during night in a hot day.
it pops
tae
The air will expand, increasing the volume
it rises
it goes down