 Water Cycle InteractiveAlmost three-quarters of the Earth's surface is water. It takes many forms, including oceans, rivers, lakes, glaciers and groundwater. Earth's waters is always moving around the planet in a process known as the water cycle. |  Water Cycle GameThe water which we drink today, is the same wter that existed when the World began. It is being continually recycled in a process called the water cycle. |  The Largest River on Earth ...The largest river on Earth is invisible - and airborne. On a typical sunny day in the Amazon, 20 billion metric tons of water flow upward through the trees and pour into the air, an invisible river that flows through the sky across a continent. |
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