Answer:
Agriculture is the answer
1840s
Factory-made agricultural machinery increases farmers' need for cash and encourages commercial farming
1841
Practical grain drill patented
1842
First grain elevator, Buffalo, NY
1843
Sir John Lawes founded the commercial fertilizer industry by developing a process for making superphosphate
1844
Practical mowing machine patented
1847
Irrigation begun in Utah
1849
Mixed chemical fertilizers sold commercially
To combat the creation of NATO, the USSR (AKA Russia and multiple other nations) banded together with its communist counterparts and signed a pact in Warsaw, hence the alliance's name, "Warsaw Pact."
Mercantilism the economic theory that trade generates wealth and is stimulated by the accumulation of profitable balances, which a government should encourage by means of protectionism.
