Answer:
The description corresponds to an observational study.
Explanation:
In Observational studies, researchers observe the effect of a risk factor without changing what is exposed to it or its conditions. On the other hand, in an experimental study, researchers can introduce a change and study the effects of it.
The answer would be: <span>Changing Age Structure of the Population
In order to create a successful marketing campaign for their products, marketing teams need to pay attention to the difference in taste that a new age group has compared to the older one. Because one day, the new age group will grow up to be the demographic that held the most economic power.
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The answer is A because their idea is survival of the fittest, the strong will survive while the weak will not progress.
The answer of this question is Sherman Antitrust act
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