How is the water cycle maintained?
Energy from the sun helped power the water cycle and Earth’s gravity kept water in the atmosphere from leaving the planet. The oceans hold about 97 percent of the water on Earth. About 1.7 percent of Earth’s water is stored in polar ice caps and glaciers.
How is the balance of water on Earth maintained?
The hydrological cycle maintains / water cycle keeps balance between evaporation, precipitation, the transport of watervapour in the atmosphere from the sea to the land and run-off from land to sea. This is how water is maintained on Earth.
Where does most of the water in the water cycle come from?
The water cycle , also known as the hydrologic cycle, describes the continuous movement of water as it makes a circuit from the oceans to the atmosphere to the Earth and on again. Most of Earth’s water is in the oceans. The sun, which drives the water cycle, heats water in the oceans.
Why is the water cycle important to life on Earth?
Water Cycle Earth is a truly unique in its abundance of water. Water is necessary to sustaining life on Earth, and helps tie together the Earth’s lands, oceans, and atmosphere into an integrated system.
How is the water in the ocean in constant motion?
This water is in constant motion—evaporating into the air, condensing and precipitating onto land or water, and traveling back to the ocean where the never-ending water cycle begins again. Understanding the water cycle and the ocean’s role in it can help increase students’ appreciation for the planet’s ocean.
Which is the last step in the water cycle?
The last of the major parts in the water cycle steps is precipitation. Everyone knows about this one. It’s rain! However, precipitation technically is not a process at all. It is the result of evaporation and condensation. Precipitation describes any liquid or solid water that falls to Earth as a result of those two processes.