This document discusses elements of regional geography, including natural environment, human geography, political geography, and economic geography. It explains that regional geography focuses on the interaction of cultural and physical factors in a specific landscape, while systematic geography examines individual factors globally. The natural environment encompasses living and non-living things that affect human survival and economics. Human geography studies patterns of human social interaction. Political geography analyzes the outcomes of political processes at the state, international, and local levels. Economic geography examines relationships between economies, states, and the environment as well as the location and organization of economic activities worldwide.