
Rocks
Available
About 100,000 tons (91,000 metric tons) of rock fall to Earth from space every year. The world’s lightest rock is pumice. Discover more about this feature of the natural world in Rocks, a title in the Focus on Earth Science series.
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28.55 £
About 100,000 tons (91,000 metric tons) of rock fall to Earth from space every year. The world’s lightest rock is pumice. Discover more about this feature of the natural world in Rocks, a title in the Focus on Earth Science series.
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