Answer:
to provide water for crops
Explanation:
The reason why Ancient Egypt developed irrigation systems was so that they would provide water for crops.
Ancient Egypt was civilized and more advanced than mose other civilization and they developed irrigation so that they could water their plants.
The SI unit for measuring force is the Newton, or N.
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The difference for the given polynomial is 
Explanation:
The given polynomial is 
A polynomial is generally a sum or difference of terms or variables which are separated by addition and subtraction signs. There are "three types of polynomial": Monomial, binomial and trinomial.
The difference between is found as follows:
D =
Removing the brackets, we get,
D = 
D = 
D = 
Thus, the polynomial represents Option A as the difference.
The Magellan expedition has multiple geographical significance.
It reaffirmed the unity of the oceans, revealed that there was an ocean more spacious between Asia and America than the Atlantic, confirmed that Columbus had found a new continent, and in the end, it was finally proved that Earth was a sphere, and this sphere that turns from west to east.
Explanation:
- He sailed in 1519 from the Spanish port, with five ships and 265 crew members. Sailing south along the eastern shores of South America it was not until October 1520 that he entered the strait that bears his name today. He explored it and discovered the archipelago of Isla Grande de Tierra del Fuego south of it.
- Through that passage, he stepped out onto a new ocean. He called it the Pacific Ocean, because it had not been bad for three months of navigation.
- In 1521, he reached the Philippine Islands, where he died in a skirmish with the natives of the tiny island of Mactan. Sailing the Indian Ocean, and sailing Africa, into Spain, under the command of H.S. Del Khan only one ship with 18 crew members returned in 1522.
Class: History
Level: Middle school
Keywords: Magellan, circumnavigation
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