The components of Earth's system involved in the water cycle are:Atmosphere - Provides the space for water to exist as vapor, forms clouds, and facilitates precipitation.Hydrosphere - Includes all forms of water (liquid, solid, gas) in oceans, lakes, rivers, groundwater, ice caps, and glaciers. It's the main reservoir and pathway for water.Lithosphere (Geosphere) - The land surface influences runoff, infiltration, and storage of groundwater. Mountains affect precipitation patterns.Biosphere - Plants contribute to transpiration, releasing water vapor into the atmosphere. Animals consume water.