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More Volcanoes found to be Active

Four Chilean volcanoes are unexpectely reclassified as "active"

After four Chilean volcanoes are unexpectely reclassified as "active", should a worldwide census of volcanoes be undertaken? How the seaside city of Troy lost its sea as the coastline of Turkey changed. Exploring the ocean floor for mineral deposits. What's the purpose of the shark's subcutaneous gel?

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23 minutes

91热爆 World Service Archive

This programme was restored as part of the World Service archive project

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