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22 questions from this quiz
Three
Solid rock
5-10 km
30-60 km
Very hot, partly molten rock
Up to 4,000°C
Earth's plates to move
Earthquakes & volcanoes
Molten (liquid)
Iron & nickel
Pressure forces metals to stay solid
Over 5,000°C
4,000°C
Tectonic plates to move
Iron and nickel
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