Hey!! I believe that the answer is D. Ethnic and religious diversity!!
Answer: D, President Nixon's plan for the gradual withdrawal of U.S. troops from Vietnam.
Explanation: Vietnamization was introduced by President Nixon in 1969 to gradually withdraw troops from Vietnam. The policy mainly involved the training of S. Vietnamese troops to take the burden of warfare after the U.S. completely withdrew from the conflict.
Answer:
Thomas Savery
Explanation:
The steam engine was developed over a period of about a hundred years by three British inventors. The first crude steam powered machine was built by Thomas Savery, of England, in 1698. Savery built his machine to help pump water out of coal mines.
Answer:
Civilizations had food surplus.
Explanation:
Answer:
Each city-state had its own form of government.
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