Physical Environment

Physical geography covers the topics relating to the surface of the earth - the landforms, glaciers, rivers, climate, oceans, earth-sun interaction, hazards, and more. It is a part both of the Earth Sciences, alongside subjects such as Geology, and of Geography, with its explicit focus on the spatial distributions of phenomena and its concern with the clues that spatial evidence can provide to help answer questions about the Earth's surface and environmental systems. Humans are the only one part of the overall equation.

Source: http://geography.about.com/od/physicalgeography/Physical_Geography.htm
http://www.geography4kids.com/
http://www.petergknight.com/physicalgeography/whatdefinition.html

-Nicole Mui-