Source: Earth Western Hemisphere, Wikimedia Commons

Water covers the majority of planet Earth. About 71 percent of the Earth’s surface is covered with water. It is estimated that there are approximately 1,260,000,000,000,000,000,000 liters (326,000,000,000,000,000,000 gallons) of water on Earth. That is 326 million trillion gallons.

If there is so much water on Earth, why do more and more signs, like the ones shown below, appear in our neighborhoods and communities?

Sources: Water Restrictions,
Stage 2 water restrictions, ABC
Water Restrictions,

Interactive exercise. Assistance may be required. Not all of the water on the Earth’s surface is available for use. Click on each of the percentages on the circle graph below to see how Earth’s water is distributed.