Wind erosion is the main cause. And since it is the desert that wind can pick up tiny sand rock particles that slowly grind against the rock. Over time the erosion will give a jagged rock the smooth features as if it had been submerged in a river for the roughly same period of time.
Well the U.S.A was the winning group and its allies.
Hope IT helped :D
The tiger is an India animal that has been endangered in the past.
I hope this helps you! :)
Using renewable resources is better than using unrenewable resources (hope this helps)
