Gravel in the soil helps crops grow better, since they provide nutrients. Sand however, doesn't impact the crops growth at all.
Answer:
laws that are made to keep certain people out of a country.
Answer:
The Euphrates river
Explanation:
Along with the Tigris, the Euphrates river helped form the Fertile Crescent and the Sumerian civilization.
It starts where the Karasu and Murat rivers merge in eastern Turkey and continues southeasterly for 2800 km (1740 mi) through Syria and Iraq until it merges with the Tigris river at Al-Qurnah. There, it becomes the Shatt al-Arab waterway and empties into the Persian Gulf.
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I looked all over the Internet, and saw that there is another option that you didn't include, and which is actually the correct answer.
Bays best facilitate the building of ports, not these options.