What do geographers try to explain when studying the theme of movement?

Movement – As humans, we move people, goods, and ideas across the planet at will. The theme of movement examines this and is one of the most essential parts of geographical exploration. It deals with the examination of immigration, emigration, populations, and distribution in the regions and countries of the world.

Explanation:

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.

answer; i believe that the correct answer is ( troxel v. granville);