My daughter took some notes out of her science book today. She wanted to know if I knew that 3/4 of the earth's surface is made of water. I did know that. She then told me that 97% of that water is salt water. (That's a lot.) Of the 3% left, 2% is made up into glaciers. That leaves one percent for human use!
Showing posts with label water humans use. Show all posts
Showing posts with label water humans use. Show all posts
Monday, September 24, 2007
Did You Know How Much of the Earth's Water We Use?
Did you know how much of the earth's water we use?
My daughter took some notes out of her science book today. She wanted to know if I knew that 3/4 of the earth's surface is made of water. I did know that. She then told me that 97% of that water is salt water. (That's a lot.) Of the 3% left, 2% is made up into glaciers. That leaves one percent for human use!
My daughter took some notes out of her science book today. She wanted to know if I knew that 3/4 of the earth's surface is made of water. I did know that. She then told me that 97% of that water is salt water. (That's a lot.) Of the 3% left, 2% is made up into glaciers. That leaves one percent for human use!
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