A sense of the concept of time. if not then i dont know
Answer: C. aspirin; headaches
Explanation:
The variables in an experiment are either dependent or independent. An independent variable is the change that is introduced to test the hypothesis. A dependent variable on the other hand is the one being monitored or measured due to the introduction of other variables.
Here Headaches are the dependent variables as the experiment is to monitor whether the introduction of aspirin, the independent variable, takes headaches away.
The correct answer is Sigmund Freud. His studies on psycho-neuroses around the 20th century is considered to be the basis of psychology and psychiatry.
Answer:
<em>Providing supplies to American and Allied troops fighting the war in Europe, Africa, and the Pacific required the efforts of all Americans. At home, citizens </em><em>assisted</em><em> to the war effort by rationing consumer goods, recycling materials, purchasing war bonds, and working in war industries.
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