Most of Earth is covered with water, but only a tiny part is freshwater. If all Earth’s water were a full glass, the usable freshwater would be just a teaspoon—very small and precious. Class 5 Our Wondrous World – The World ...
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Most of Earth is covered with water, but only a tiny part is freshwater. If all Earth’s water were a full glass, the usable freshwater would be just a teaspoon—very small and precious. Class 5 Our Wondrous World – The World ...