Around ____% of the Earth's surface is covered by oceans. ____ Water on Earth is mainly found in ______ state ____ Oceans and seas represent ____% of the water on Earth ____ Continental (freshwater) represents ____% of the water on Earth ____ ______ is the process by which water vapor in the air condenses into clouds. ____ Water falls to the surface as rain, snow, or ______. ____ Rainwater can filter into the ground, forming ________. ____ Humans use water to satisfy basic needs, maintain quality of life, and generate ______. ____ Human activity _______ water, even groundwater ____ The combined mass of water on, under, and over the Earth's surface is called the _________. ____

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