The water cycle is a classic example of a cyclical process in nature. It involves the continuous movement of water on, above, and below the surface of the Earth, and includes the following stages:

1. Evaporation: Liquid water from oceans, lakes, and rivers absorbs heat energy from the sun and transforms into water vapor, rising into the atmosphere.

2. Condensation: As the water vapor rises and cools, it condenses back into liquid water droplets, forming clouds.

3. Precipitation: When the water droplets in clouds become heavy enough, they fall back to Earth as rain, snow, sleet, or hail.

4. Collection: Precipitation collects in oceans, lakes, rivers, and groundwater, starting the cycle anew.

Other Examples of Cyclical Processes in Nature:

* The Carbon Cycle: The movement of carbon through the Earth's atmosphere, oceans, land, and living organisms.

* The Nitrogen Cycle: The transformation of nitrogen between different chemical forms in the environment, including atmospheric nitrogen, ammonia, nitrates, and nitrites.

* The Rock Cycle: The continuous process of rock transformation, from igneous to sedimentary to metamorphic rocks.

* The Seasons: The cyclical pattern of weather changes due to the Earth's tilt on its axis and its orbit around the sun.