Why is there sand in deserts and no dirt? Why isn’t there sand anywhere else?

Question

I figured it was something to do with sand being light enough to be carried by wind, but that wouldn’t explain why the rest of the world lacks sand.

In: 327

Answer 1

Seriously, have you ever been in a desert? I spent years in the American southwest, and rocks and dirt were super common. Very very very rare to see accumulations of sand, especially rare to see dunes.