D. Spends more tax revenues than it receives
The answer is D. To protect themselves...
Hope this helps!
Answer:
An observational study.
Explanation:
Observational studies are those studies in which the researchers note the effects of risks factor, diagnostic test, or treatment without interrupting in it by changing anything. It is an investigative study that aims at distinguishing the effects caused by the treatment.
<u>In the given case, the researcher has used the observational study method to identify the effects of exercise on reducing the cholesterol level. He divided the people into two groups with 50 each. The research was performed without an awareness of these people as well as the technician measuring the cholesterol level. Thus it exemplifies an observational study</u>.
So, the correct answer is the observational study.
Answer:
society.
Explanation:
The evolutionary theory of Charles Darwin inspired many sociologist to suggest that society is itself an organism which evolves from a primitive stage to a modern one. L.H Morgan suggests three stages of evolution which are savagery, barbarism, and civilization by which society moves from simple to more complex form. British sociologist Herbert Spencer applied Darwin's theory of survival of the fittest to society and according to him western societies are better adaptive to the changing times and therefore they are surviving and evolving.
