Have you ever been ____ you need to drink ____ and stay hydrated? Yes, water is ____ and very important to ____. There are about 300 million trillion gallons of water on ____. That is 70% of the Earth's ____. So it should be easy to keep ____ and staying hydrated with all that water available? Right? Well, most of the water on Earth is in the ____ and we can only ____ about 3% of the water. Out of the 3% we can only use 1% ____ 2% is frozen in glaciers or hidden ____. That makes you really ____... Is there enough water for us to use ____? Scientists say that we will actually never run out of ____. Why is that? Well, water changes ____ and actually is recycled through the water ____. However, if we are not ____ we can pollute or ____ water with dangerous ____ and other pollutants. When that happens it is ____ hard to ever recover and ____ that water.

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