The answer to your questions is D.
Answer:
kinect
Explanation:because it moving i hope it right
<h2>Answer:</h2>
By digging tube wells
<h2>Explanation:</h2>
Water can be obtained from the land by digging a hole in the earth surface. The process is called boring. A tube well is a type of water well in which a long, 100–200 millimeters-wide, stainless steel tube or pipe is bored into an underground aquifer. In this way people who supply their own water to other areas or people generally obtain it by using tube wells where they attach a motor to it for speedy suction and then transfer the water to destination by using pipes.
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.