The answer is for your question is D
A major motivation behind the United States’ decision to purchase Alaska was the established seal fishery industry in the territory promised economic benefits.
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The correct answer is Migrant workers from Mexico took jobs there
Explanation: In this sense it is possible to understand that immigrants played a major role in the development of some neighborhoods in the united states, immigrants helped to develop their specifies and ways of living as well as a very important fusion of culture for the country.
Answer:
B. It shows objects that are reduced to their basic geometric shapes.
C. It is an experiment that shows three-dimensional objects on a flat surface.