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What is hydraulic fracturing?
Will California eventually fall into the ocean?
Do you offer teacher discounts for your maps and other cost products?
Why is the ocean salty?
Is there water under the ground?
What does the USGS do?
How does the Earth's core generate a magnetic field?
Learn about uranium decay
How hot is a Hawaiian volcano?
Will the oil in the Bakken Formation free us from depending on foreign oil?
USGS Spotlight Questions