Answer:
My answers is Mediterranean Sea.
Explanation:
If I need to choose only one answer it would be Mediterranean sea, as it was to the north to Egypt, which meant that it was impossible to attack Egypt from North without navy.
Red Sea can be also the correct answer as it protects Egypt from the east, although Sinai Peninsula connects Egypt with Asia.
Tigris and Euphrates are in Mesopotamia, not Egypt.
Nile is not correct as the river flows across Egypt and couldn't prevent invasion.
Ancient Egyptians used Geometry as well as arithmetic to develop their duties as civil managers. It's clearly seen that they used geometrical shapes on their holy landscapes such as Pyramids, Temples, and obelisks.
In addition, they used this branch of mathematics to measure distances. especially on the land survey at the Nile fields, after floods, in order to define their limits. However, their methods to calculate areas were not exact at all, especially on shapes other than rectangles.
The first one is the answer
"(2) A shortage of workers developed." is the best option from the list, but of course there were other direct results of the Black Death in <span>Europe as well.</span>
