Knowledge of geography provides the means to identify & describe natural features of the earth including landforms, water, vegetation & climate.
a. physical
b. human
c. regional
d. social

Knowledge of a) physical geography provides the means to identify and describe natural features of the earth, icluding landforms, water, vegetation and climate.

The answer would be : C. Regional 
Regional Geography studied the unique characteristics of a particular region, which cover all of its natural elements such as its landform and vegetation, and its Human Elements such as the local's unique cultures

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The answer is itprovides information about locationis a network of satellites orbiting the earth