Erosion and Weathering 0.0 / 5 ? GeographyCoastal zonesGCSEAQA Created by: chloeormexCreated on: 14-01-16 19:11 Whats the definition of Hydraulic Action? The force of the waves crashing into the cliffs! Air is compressed into cracks in the rock, forcing the rocks apart! 1 of 5 Whats the definition of Attrition? Pebbles are rolled back and forth by the waves. As they rub against each other, the pebbles are worn away and broken down. 2 of 5 Whats the definition of Abrasion? Sand and pebbles are thrown against the side of the cliffs by breaking waves, wearing the cliffs away ( sandpaper effect ). 3 of 5 Whats the definition of Mechanical Weathering? Big rocks are broken down into smaller rocks as they expand and contrast. 4 of 5 Whats the definition of Chemical Weathering? Acid in rain water dissl 5 of 5
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