<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.
The development of the calander shows they can divde the number of minutes hours days month etc in a year. Development of the pyramids shows geometry and engineering. look up to make sure.
Answer:
Explanation:
we can avoid cutting trees
The answer to this is mountains