I just took the test it is C:Natural disasters
Answer and Explanation: "On a map, the Fertile Crescent looks like a crescent or quarter-moon. It extends from the Nile River on Egypt's Sinai Peninsula in the south to the southern fringe of Turkey in the north. The Fertile Crescent is bounded on the west by the Mediterranean Sea and on the East by the Persian Gulf." - Fertile Crescent, History
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Others fell off ladders, slipped on rocks, inhaled silica dust, or suffered from mercury, lead or arsenic poisoning. Many got sick from drinking dirty water and living too close together. Miners faced immediate dangers, as well as health problems that developed over time
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An interesting fact is that the Egyptions purposely left no trace of evidence on how they built the pyramids. However, a study shows that the Egyptions may have used a technique where they wet the sand in front of a machine which was built to pull heavy objects, such as the heavy stones they used.
