81. Which of the following is NOT one of the difficulties associated with Western life?
A. Overproduction meant the food
B. Expensive new machinery and
market became so flooded with goods
fertilizer led to debt.
that prices fell sharply.
C. The lack of a tariff created low prices D. Railroads often charged farmers
on household items.
higher rates.

isaac newton first proposed that earth was not perfectly round. instead, he suggested it was an oblate spheroid—a sphere that is squashed at its poles and swollen at the equator.

the idea of the earth being a flat disc is also inconsistent with the fact that a given lunar eclipse is only visible from half of the earth at a time. the only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient greeks deduced that this must mean the earth is spherical.

music

explanation: