A landform is a natural feature of the Earth's surface, shaped by various geological processes. Examples of landforms include mountains, valleys, plateaus, and hills. These features can be formed through processes like erosion, sedimentation, and volcanic activity. Landforms play a crucial role in the environment, influencing climate, ecosystems, and human activities. For instance, a mountain range can affect weather patterns, while a valley may provide fertile land for agriculture. Understanding landforms helps scientists and geographers study the Earth's history and predict future changes.