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6. How far would magma travel into the air?
7. When was the last eruption?
- 740,000 years ago
- 700,000 years ago
- 640,000 years ago
- 600,000 years ago
8. What is the supervolcano in Yellowstone national park called?
- yellowtone caldera
- yellowstone supervolcano
- yellowstone volcano
- supervolcano yellowstone caldera
9. How often is there an eruption at yellowstone?
- every 6 million years
- every 600,000 years
- every 60,000 years
10. How much material does a volcano need to eject to be a supervolcano?
- at least 1000 km³
- at least 100 km³
- at least 10,000 km³
11. How many earthquakes are there at yellowstone each year?