The water cycle in the ecosystem
The answer is: The sun, which is the main driver of the water cycle, heats the water in the oceans, which turns (evaporates) into water vapor in the atmosphere.
The water cycle is a vital part of any ecosystem. It involves the constant movement of water from oceans and seas, through the atmosphere and onto land. It begins with the sun heating the water in the oceans, causing it to evaporate and form clouds. The clouds then move across the sky, eventually touching the ground and releasing their moisture in the form of rain or snow. This water then flows back into the oceans and seas, and the cycle begins again. In this way, the water cycle helps maintain the balance of fresh water on Earth and in the atmosphere, which is essential for life on Earth.