It’s either hurricane or tornado:)
Answer:
may be 1 is the answer may be ..
In the USA, it is in Fort Knox, Kentucky.
In other countries that keep a gold reserve, it is in a similar
guarded, high-security central facility.
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.
In both southern and eastern hemispheres
