Answer:
built dams to provide for irrigation
converted bad land into agricultural fields
invented new farming methods
C, is te naswerC, is te naswer
Why do we study it? we study history to know what it was like in the past and think of how did we change from past to present. what we get from history? we get information about who and what helped from then to now and how we became one country if you're talking about America.
Nixon was famous for visiting Mao Zedong in China, so the answer is D
The Alien and Sedition Acts were four laws passed by the Federalist-dominated 5th United States Congress and signed into law by President John Adams in 1798.