Where Is Surtsey?
Surtsey is a volcanic island, a few miles south-west of the Westman Islands which are situated off the south coast of Iceland. The island appeared as a result of a...
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Why Are Beach Pebbles Round?
The pebbles that are to be found on a beach are invariably round and smooth owing to the constant battering they have received from the sea. Originally pebbles were...
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