A cataract is an area of a river where the elevation of the streambed changes too quickly or has to many boulders meaning people couldn't use part of the river as transportation.
This was a good thing because the cataracts effectively served as barriers so they could control travel. This meant that the Pharos found it impossible to control the land south of the first cataract. This ending up becoming the southern border of Ancient Egypt.
Hope this helped ☺️
Answer:
Land
Explanation:
Land is the part of the planet that is solid and not solid like lakes or rivers. Is a resource that has no cost of production, until humankind start to use it for specific purposes. This concept includes all the physical elements that are over there like climate, fields, forest, animals, etc. Also this resource includes everything that is on the surface, like buildings, trees, etc. But also, above the surface like the air space. And also, the things that are under he ground like minerals or oil that it is discover.
Hope this info is useful.
George washington was the first president
Answer:
The amount of water on earth is constant, or nearly so.
You can get an underwater mountain range like the Mid-Atlantic Ridge. Normal faults occur at divergent boundaries.
