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Thursday, 28 November 2019

sand dunes

Sand dunes are important because they protect the houses roof from falling down.
They are made out of 3 objects wind sand and water the wind pushes the sand to make a hill type thing when the beach turns into a high/king tide the water will push the water into the sea but don't worrie all you need for the sand dunes to come back is a bit of wind to make bigger sand dunes.




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