Reservoir - Another word for a lake, Hydrosphere - The layer of water on planet earth, Aquifer - Nature's underground storage for fresh water, Watershed - A system including rivers and tributaries and all the land surrounding it., Oceans - 97% of all the water on the planet, Fresh Water - 3 %of all the water on the planet, Frozen water/glaciers - Most of the fresh water on the planet is frozen. Roughly 2.5%, Potable - Water that is fit for human consumption., Percolation - The process of water moving from above ground to below the ground, Conservation - Preserving natural resources like water,

Hydrosphere

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