What is the study of the earth’s lands and people called?

could you use this to with a topic?

the key difference between a democracy and a republic lies in the limits placed on government by the law, which has implications for minority rights. both forms of government tend to use a representational system — i.e., citizens vote to elect politicians to represent their interests and form the government.

the answer is lower nubia. plz mark brainliest i am trying to improve rank.