This document outlines the key elements of regional geography, including the natural environment, human geographies, political geographies, and economic geographies. It describes the natural environment as consisting of living and non-living things that occur naturally on Earth. Human geography examines how human activity affects or is influenced by the Earth's surface, looking at factors like language and religion. Political geography deals with systems of government and power structures. Economic geography studies the location and organization of economic activities and sectors including primary, secondary, tertiary, and quaternary industries.