Duotoil.
which of these statements is true?
a. there was a causal relationship between influenza outbreaks and
the closing of frontiers.
b. there was a nausal relationship between world war i and an
international food shortage.
c. there was a causal relationship between economic chaos and
improved shipping technology.
o
d. there was a causal relationship between submarine warfare and
medical advancements.

the answer is c.richard m. nixon

nothing certain is known about what happened, but it seems that the country declined gradually, perhaps due to bad government, or, more likely, due to a series of bad harvests, which resulted in widespread and recurrent famine.

the correct answer is b, "fertility rates are increasing, so populations will grow more quickly in the future."

the noble might have thought that the system was far because they had lot of things and riches and the serf would have thought that the feudal system was un fair because of the way they were treated.