Uplift, or elevation, refers to the geological process that raises the Earth's surface. This can occur due to tectonic forces, where the movement of the Earth's plates pushes land upwards, forming mountains and hills. Uplift can also result from volcanic activity, where magma forces its way to the surface, creating new landforms. The effects of uplift can be seen in various landscapes, such as the Himalayas, which were formed by the collision of the Indian and Eurasian tectonic plates. Uplift plays a crucial role in shaping ecosystems and influencing climate patterns by altering drainage systems and creating barriers to wind and weather.