No, underground scans show many riverbeds and there is evidence of it having been heavily forested during the last few ice ages.
Sand.
Sand
sahara desert
I think (if you mean the only desert with sand dunes everywhere) that the Sahara isn't. I've seen pictures of deserts with sand dunes everywhere, and most of them weren't the Sahara. However, if your talking about its size, the Sahara is the largest (hot) desert on Earth.
Yes
yes there is
The Sahara is a large Sand Dune type desert, No Deciduous Trees
The Sahara and Great Sand Sea are the largest Egyptian deserts.
No, the Sahara desert was made by the weather in Africa.
A lot...
Weathered rock
lol no way you idiot its a desert The Sharah does in fact have mountains, only 1/8 to 1/4 of the Sahara is sand