Answer:
A river valley civilization is an agricultural nation or civilization situated beside and drawing sustenance from a river. A "civilization" means a society with large permanent settlements featuring urban development, social satisfaction, specialization of labor, centralized organization, and written or other formal means of communication. A river gives the inhabitants a reliable source of water for drinking and agriculture. Additional benefits include fishing, fertile soil due to annual flooding, and ease of transportation. The first great civilizations, such as those in Mesopotamia, Harappa and Ancient Egypt, all grew up in river valleys. Tigris River flourished near Mesopotamia civilization and river nile flourished near civilization of Egypt.
Explanation:
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<span>(B) is the most correct answer. Social Security becomes the main way a person earns income after they reach the age of at least 62. This way, a person who has retired from the workforce can still draw an income and be able to live comfortably without having to worry about having a retirement plan in place.</span>
