If you drop a yellow hat in the Red Sea, what does it become?

I am born from silence, yet I whisper in flame. No body I carry, yet many know my name. I drift through deserts where moonlit winds spin, Neither demon nor angel

A quiet swell upon the land, too small for peaks, yet still I stand.

Thousand upon thousands of grains am I, beneath the sun and open sky. I line the shores and deserts wide, where small hands build, and waves decide.

I wear a blanket cold and white, Where trees refuse to grow upright. Caribou wander, foxes play, And summer lasts but a short lived stay.