Which of the following best describes the difference between a scientific hypothesis and a scientific theory? once a scientific hypothesis has been proven, it becomes known as a theory. a scientific hypothesis must be testable, while a theory does not have to be tested. a scientific hypothesis is a testable assumption, while a theory is a well-verified idea used to explain a broad range of phenomena. only a scientific hypothesis is subject to scrutiny, while a theory does not change.

answer is b.shrapnel

president reagan was a good presidant and should be presidant if he was still alive

explanation:

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.