Lava inside a volcano may reach temperatures higher than 1150° C (2100° F). That's hot enough to melt gold.
Of the 1,000 active volcanoes on Earth, only 30 of them are known to erupt.
Earth's tectonic plates move slowly. Some move as fast as human fingernails grow (1 inch/year), while others may move up to 3 times faster.
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