Lets imagine that your vacuum cleaner has stopped working. when it has stopped working in the past, a broken belt was the culprit. since past experience has taught you that the belt is a common issue, you replace the belt again, but this time the vacuum continues to malfunction. you ask a friend to come take a look at the vacuum, and he discovers that one of the hose attachments was not connected, causing the vacuum to lose suction. because of your mental set, you failed to notice a fairly obvious solution to the problem.

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.

answer; collective security;

why does vagina taste like fish water (asking for a friend)

even though you have attached neither the chart nor the generalizations, i have located them online. the right answer is d, since they are asking you about a generalization. you can only infer from the chart that between 2008 and 2009 the number of employed workers decreased significantly (from over 115 millions to 107 millions approximately), which signals some type of economic crisis.