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

There is sand elsewhere… Look at beaches. I live in northern Canada, and all I have is sand between me and the bedrock. No desert anywhere near here.

Sand is just decomposed rock. Anywhere you have rock and the ability for something to weather it (rivers, rainfall, waves, etc) you get sand.