Water is the most corrosive substance on earth. Given enough time it can erode anything. And we drink the stuff every day! I think maybe water is the most versatile element on the Earth - we drink it, wash with it, water plants with it so they can grow and we can eat them. We mix it with other stuff to make other, other-stuff. We literally could not live without water, which is why they're trying to find it on the Moon and on Mars.[Note: According to NASA they did find lots of water on the Moon when they smashed a rocket into it the other day. They just released their findings this week. 11.15.09]
