How do beaches grow?
Do you know that beaches grow? The sea builds beaches from the smashed remains of rocks that the waves have broken from a rocky shore. Boulder beaches are made entirely of massive blocks of rock that have been broken by the waves from the surrounding cliffs. Of course, it is not too comfortable to lie on a boulder beach! Waves also carry sand and sediment to the beach, and if there are a few years of good winds, few storms and plentiful sunshine, the sand accumulates and dries out, so that the beach grows.
Monday, January 7, 2008
How do beaches grow?
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