ge·og·ra·phy

jēˈäɡrəfē

Noun

the study of the physical features of the earth and its atmosphere, and of human activity as it affects and is affected by these, including the distribution of populations and resources, land use, and industries.

the nature and relative arrangement of places and physical features.

plural noun: geographies

Sentence:

“Knowing the geography and topology of the battlefield"

human geography

noun: human geography

the branch of geography dealing with how human activity affects or is influenced by the earth's surface.

Why Study Human geography?

Human geography is the branch of geography that deals with the study of people and their communities, cultures, economies, and interactions with the environment by studying their relations with and across space and place. Human geography attends to human patterns of social interaction, as well as spatial level interdependencies, and how they influence or affect the earth's environment. As an intellectual discipline, geography is divided into the sub-fields of physical geography and human geography, the latter concentrating upon the study of human activities, by the application of qualitative and quantitative research methods.

This is a video called "Pale Blue Dot" by a scientist named Carl Sagan, it will give you one of the best perspective of a world view.