What type of renewable energy relies on the movement of air?

The correct choice is based on the understanding that wind energy is generated from the movement of air. Wind energy harnesses the kinetic energy produced by moving air (wind) to turn turbines, which then convert this mechanical energy into electricity. This process is a clean and renewable source of energy since it does not rely on fossil fuels and has a minimal environmental impact compared to conventional energy sources.

In contrast, the other options represent different sources of renewable energy that do not rely on air movement. Geothermal energy uses heat from the Earth's interior, solar energy captures sunlight to produce energy, and hydraulic energy (or hydroelectric power) is generated from the movement of water, typically in rivers or dams. Each of these methods has its distinct mechanism of operation and source, differentiating them from wind energy, which is directly linked to the dynamics of air flow.