How are dust formed?

Answer 1

First of all it should be How is dust formed.=Well most dust is dead skin infact about 80 to 90% of dust is dead skin that has fallen off us. The other 20 to 10% is most dried up food and some of it is polution.=

Answer 2

Most of the visible universe is made of the gases hydrogen and helium, which do not form dust. Heavier elements are cooked up by the process of nuclear fusion that takes place inside stars. When stars explode, in the super-nova phase of their existence, they send heavy elements out into interstellar space where they can congeal into dust clouds, as they cool.

Answer 3

sand storm occurs mostly in the deserts .