<span>The group that does not receive the experimental treatment in an experiment is the control group. This group is usually compared to the attained experience from the the experimental group (receives the experimental treatment) in order to to determine all the possible effects of the treatment. </span>
No answer choices provided but it’s because income is how much you are making before tax. Also, wealth means an abundance of currency so unless you are making lots of money, you dont have wealth. Hope this helps.
Answer:
The stalemate and high casualties caused by trench warfare on the western front
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