country — (noun) land with its own government · river — (noun) a natural flow of water to the sea · mountain — (noun) a very high natural landform · ocean — (noun) a vast area of salt water · forest — (noun) a large area with many trees · island — (noun) land completely surrounded by water

continent — (noun) a large landmass on Earth · hemisphere — (noun) half of the Earth, e.g. north or south · latitude — (noun) distance north or south of the equator · longitude — (noun) distance east or west of Greenwich · erosion — (noun) wearing away of land by natural forces · climate — (noun) usual weather in a place over time

tectonics — (noun) study of Earth's crust and its movement · demographics — (noun) data about populations and groups · sustainability — (noun) using resources without harming the future · globalisation — (noun) worldwide spread of business and culture · cartography — (noun) the art or science of making maps · topography — (noun) description of land’s surface features