A. People began to use advanced machinery to replace human labor
It’s the only one talking about modern science
In economics<span>, </span>factors of production, resources, or inputs are what is used in theproduction<span> process to </span>produce<span> output—that is, finished goods and services. ... Materials and energy are considered secondary </span>factors<span> in classical </span>economics<span>because they are obtained from </span>land<span>, labour and capital.</span>
The Europeans mainly imported tea from "<span>India and China," since China for a long time had a central monopoly on the tea trade, and Britain tried to end this by introducing more tea in their various markets. </span>
The Vietnam War. It was a long debate over lowering the voting age from 21 to 18, which began during World War II and only intensified during the Vietnam War when young men who were practically being heavily obligated and sometimes forced/drafted to fight for their country were being denied the right to vote.
“Old enough to fight, old enough to vote” became a common slogan for a youth voting rights movement, and in 1943 Georgia<span> became the first state to lower its voting age in state and local elections from 21 to 18.</span>
