Aresearcher is going to hawaii to study japanese immigration to the united states. which of the five themes of geography would the researcher most likely use? a. human-environment interaction b. location c. movement d. region

I believe the answer is movement because the immigrants are moving from one place to another.

C.  movement

Explanation:

As it involves the interaction of the place of origin to the place of destination and it includes the spread of ideas and culture and values system to the newer places and the interaction of man and the movement take place were the people moved from the japan to the Hawaiian island in the U.S is a geographic theme of movement.

The second one is the answer edg.

81 is a composite number