Warm air raising toward the ceiling or attic of a house warm air is less dense than cool air.
Wind is an example of a convention current sunlight or reflected light radiates heat.
Answer:
The acid bath guy? He's Caucasian and born in England. Is this what you were asking or...?
Explanation:
Gravity , Explosion
<u>Explanation:</u>
Nebulae are made of dust and gases—mostly hydrogen and helium. The dust and gases in a nebula are very spread out, but gravity can slowly begin to pull together clumps of dust and gas. As these clumps get bigger and bigger, their gravity gets stronger and stronger.
Eventually, the clump of dust and gas gets so big that it collapses from its own gravity. The collapse causes the material at the center of the cloud to heat up-and this hot core is the beginning of a star.
