Answer:
C. growing leaves to warm up
Answer: A. They developed terraces
Explanation:
It’s not b or c because I got both wrong so it has to be a or d.
Answer:
A. Airplane
Explanation:
Around 1918, Air delivery, became the new mode of transportation for mail, as it rendered railroad services unnecessary. During this period, the Post Office moved on the airplane bandwagon early, there by, offering air mail service in the early 1900s.
Hence, the 1900's technological invention which allowed the U.S. postal service to deliver the mail considerably faster than previous methods is AIRPLANE.
Answer:
William Kamkwamba was Malawi, a country born in where magic ruled and modern science was mystery. It was also a land withered by drought and hunger, and a place where hope and opportunity were hard to find. But William had read about windmills in a book called Using Energy, and he dreamed of building one that would bring electricity and water to his village and change his life and the lives of those around him.
William had a goal to study science in Malawi's top boarding schools. But in 2002, his country was stricken with a famine that left his family's farm devastated and his parents destitute. Unable to pay the eighty-dollar-a-year tuition for his education, William was forced to drop out and help his family forage for food as thousands across the country starved and died.
Yet William refused to let go of his dreams. Using scrap metal, tractor parts, and bicycle halves, William forged a crude yet operable windmill.
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Hope this helps you! :)
Answer:As segregation tightened and racial oppression escalated across the United States, some leaders of the African American community, often called the talented tenth, began to reject Booker T. Washington’s conciliatory approach. W. E. B. Du Bois and other black leaders channeled their activism by founding the Niagara Movement in 1905. Later, they joined white reformers in 1909 to form the National Association for the Advancement of Colored People (NAACP). Early in its fight for equality, the NAACP used the federal courts to challenge disenfranchisement and residential segregation. Job opportunities were the primary focus of the National Urban League, which was established in 1910.
Explanation:
