The water cycle (or hydrologic cycle or hydrological cycle) is a biogeochemical cycle that involves the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly constant over time.

2024年12月9日 · Water cycle, cycle that involves the continuous circulation of water in the Earth-atmosphere system. Of the many processes involved in the water cycle, the most important are evaporation, transpiration, condensation, precipitation, and runoff. The total amount of water remains essentially constant.

2023年5月17日 · Water cycle, also known as the hydrologic cycle, involves a series of stages that show the continuous movement and interchange of water between its three phases – solid, liquid, and gas, in the earth’s atmosphere. The sun acts as the primary source of energy that powers the water cycle on earth.

2024年8月10日 · The water cycle or hydrologic cycle is a continuous biogeochemical process by which water circulates through the Earth’s atmosphere, surface, and underground environments. This cycle is essential for maintaining life on Earth, …

2025年2月25日 · In its three phases (solid, liquid, and gas), water ties together the major parts of the Earth’s climate system — air, clouds, the ocean, lakes, vegetation, snowpack, and glaciers. The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes.

2023年3月24日 · The hydrologic cycle involves the continuous circulation of water in the Earth-Atmosphere system. At its core, the water cycle is the motion of the water from the ground to the atmosphere and back again. Of the many processes involved in the hydrologic cycle, the most important are: evaporation; transpiration; condensation; precipitation ...

2022年10月2日 · The water cycle describes where water is on Earth and how it moves. Human water use, land use, and climate change all impact the water cycle. By understanding these impacts, we can work toward using water sustainably.

2025年1月28日 · Water is constantly on the move. It is evaporated by solar energy from the oceans, lakes, streams, the surface of the land, and from plants (transpiration) (Figure 8.1.1 8.1. 1). It is moved through the atmosphere by winds and condenses to …

THE WATER CYCLE. The water cycle has no beginning or end and is a constant state of flux. Water changes it states from liquid, to vapor, to ice and then back again. These processes happen in the blink of an eye and over millions of years.

2025年3月4日 · The water cycle is the path that all water follows as it moves around Earth in different states. Liquid water is found in oceans, rivers, lakes—and even underground. Solid ice is found in glaciers, snow, and at the North and South Poles. Water vapor—a gas—is found in Earth’s atmosphere.