That would be archeologist.
The Study of Artifacts is called Archeology.
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In regards to this question, there are no options given. I hope you are looking for whether the statement in the question is true or false. It would be totally false to say that in recent years, the controversy surrounding environmental issues has decreased. The controversy has increased not only in third world countries, but also in developed countries as well.
Northerners opposed the act because they thought it was a plot to turn this land into slave states.