Question

which geographic theme is demonstrated by giving nicknames to states or countries?
human-environment interaction
location
movement
place

Explanation:

The geographic theme of "place" refers to the unique human and physical characteristics that give a location its distinct identity. Nicknames for states/countries reflect cultural, historical, or physical traits that define the unique character of that place, distinguishing it from others. The other themes do not apply: human-environment interaction focuses on how people and the environment affect each other; location refers to a position on Earth; movement focuses on the flow of people, goods, or ideas.

Answer:

place