Wherever the sea touches land, whether it's the edge of a tiny island or the coast of a continent, there is almost always a beach.
A beach is a stretch of sand, pebbles, or mud. The sea makes beaches. Waves, crashing into a rocky shore for thousands of years, toss the rocks around, breaking them into pebbles. Then, for hundreds or thousands of years more, the waves grind the pebbles together. In time, the pebbles are ground into tiny grains of sand. Lakeshore beaches are also formed in this way.
Where a river flows into the sea, a beach is usually made of mud. That's because the river carries mud along with it. The river dumps the mud at the edge of the sea, where it piles up and makes a beach.
A beach is a stretch of sand, pebbles, or mud. The sea makes beaches. Waves, crashing into a rocky shore for thousands of years, toss the rocks around, breaking them into pebbles. Then, for hundreds or thousands of years more, the waves grind the pebbles together. In time, the pebbles are ground into tiny grains of sand. Lakeshore beaches are also formed in this way.
Where a river flows into the sea, a beach is usually made of mud. That's because the river carries mud along with it. The river dumps the mud at the edge of the sea, where it piles up and makes a beach.
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