Probably the ocean, seems interesting.
B <<<< answer.
That's the only way you can classify them. They were quite different. Sparta was a completely authoritarian type of government where defence of the state was what all citizens were loyal to. Athens on the other hand was a democratic more or less.
Answer:
The idea of collective security failed to keep the peace between 1920 and 1935 due to the fact that the league was unable to act against the larger powers due to its lack of support, and the depression.
Explanation:
They cited the failure of the United States of America to join the League from the start and the rise of the Soviet Union outside the League as one of the major reasons why the League failed as instrument for the development and enforcement of collective security.
"There were 2 main reasons:
<span>The Second Industrial Revolution created the need for a workforce in new factories,so many people moved from the countryside to the cities to find jobs in these factories.The effects of the depression of 1873-1896,which spread to America,further encouraged people to go to the cities to find work. </span>
<span>There was a long economic depression in Europe from 1873-1896,which encouraged many Europeans to emigrate to America.Most of these arrived at major port cities,and found jobs in factories so stayed there.</span>
Fog, the other three options would be too high in the atmosphere to cause visibility problems.