Answer:
Interchangeable parts, popularized in America when Eli Whitney used them to assemble muskets in the first years of the 19th century, allowed relatively unskilled workers to produce large numbers of weapons quickly and at lower cost, and made repair and replacement of parts infinitely easier.
Explanation:
Answer:FARM INCOME,FARM FINANCES,AFRICAN SWINE FEVER,TRADE WAR,and DRAMA IN D.C.
Explanation:
You must go to the US Patent Office
Answer: Charles Darwin
Explanation:
The theory of natural selection was explored by 19th-century naturalist Charles Darwin. Natural selection explains how genetic traits of a species may change over time. This may lead to speciation, the formation of a distinct new species.
Answer: The Fenian Irish-American veterans of the American Civil War hoped to conquer Canada and trade it for Irish independence from Britain. Instead, Britain's North American colonies united against them in mutual defence, thereby contributing to the achievement of Confederation.
