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USGS Frequently Asked Questions

USGS FAQ

#70: How is the water I drink made safe?

#71: Is it true that water coming out of sewage treatment plants is used for other purposes?

#72: I live on a hill, how does water get to my house?

#73: How many baths could I get from a good rainstorm?

#74: Does a little leak in my house's water line really waste water?

#76: Why does it take so long to rinse the soap off my hands?

#77: How does our swimming pool stay so clean?

#78: Why is our porcelain sink stained brown?

#79: Why are some lakes I see full of algae and thick plants?

#80: Why does my drinking water look cloudy sometimes?

#81: My uncle's house was swallowed up by a sinkhole! What happened?

#82: My mom drinks " artesian well water." What is it?

#83: I've seen ice flowing out of hills in the winter. Why?

#84: Where can I find answers to questions about West Nile virus?

#85: What is a mineral?

#86: What's the difference between a rock and a mineral?

#87: How do we get minerals?

#88: What is the meaning of the karat mark on gold jewelry?

#89: How much gold has been found in the world?

#90: How much silver has been found in the world?

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