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

Plants and trees grow and then die. These dead plants decompose into dirt and build up over time. Deserts are too hot and dry for plants to grow in the quantities necessary to create dirt.

Edit: Desserts vs desert