This document outlines the key concepts required to demonstrate geographic understanding of a large natural environment. It discusses the natural characteristics and processes that shape environments, including landforms, climate, soils, vegetation, climatic processes, tectonic processes, erosion and more. It also addresses how humans interact with and perceive natural environments, through cultural, economic, political and other interactions, and how these perceptions can change over time. The document provides guidance on explaining the characteristics, elements, processes, formation, changes, and human interactions of a large natural environment with specific examples and details.