The correct answer is the placebo effect causes brain changes.
Explanation: Placebo effect is the measurable or observable effect on a person or group who has been given a placebo treatment. Many believe that the placebo effect is psychological, due to a real effect caused by belief or subjective illusion.
The answer is 4. solar rays
US history tries to make the white man look like the good guy and hide minority struggles.
Population density is greatest in the north end part of India because of proximities to rivers and water resources, livable climates, and industrialized urban areas.
The two events described in the study are depressions and breathing-related sleep disorder. Also, the results indicate that the events are dependent.
Two events are dependent if the result of the first event will affect the occurrence or outcome of the second event, therefore changing the probability.