A geographer who studies the similarities between two places most often uses which of the six essential elements of geography?

Here are the six essential elements of geography;

1) The world in spatial terms

2) Places and regions

3) Physical systems

4) Human systems

5) Environment and society

6) The uses of geography

Geography is the investigation of the physical highlights of the World's surface and air, including how people influence them, and the manners in which they influence people. The subject can be separated into six essential elements which are mentioned above.

Places and regions

Explanation:

I guessed but i got it right XD

but ... What i think happened is that the world has regions