What is a river?
A river is a natural, flowing body of freshwater that moves from higher to lower ground, carrying water and sediment and often shaping the land as it travels.
What is a mountain?
A mountain is a tall landform that rises above the surrounding area, formed by tectonic plate movement or volcanic activity, with peaks and ridges.
What is a desert?
A desert is a very dry region with little rainfall, extreme temperatures, and sparse plants.
How do rivers shape the land?
Rivers erode land, transport sediment, and create features like valleys, canyons, and deltas where they meet larger bodies of water.
Why do deserts form in certain places on Earth?
Deserts form where rain is very rare, often because dry air settles or mountains block moist air from reaching the land.