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:
A. Lava flows block a river.
D. Ice sheets leave depressions that fill with water.
E. Movement of Earth's crust creates low areas that fill with water
Explanation:
No tsunami warning system was in place. Due to the relative poverty of the region, there was no good way to warn the citizens. So C
Answer:
If more people migrate there will be more profit made by the countries where people migrate. This means the government can spend those money to improve social places such as schools, city centers, houses, parks and etc.
Explanation:
<span>A major plate is one that has an area greater than 20 million kilometer squared and a minor plate is one not greater than 20 million kilometer squared and larger than 1 million kilometer squared. Minor plates are not usually shown on maps of major plates.</span>
