Coasts 0.0 / 5 ? GeographyCoastal zonesGCSEAQA Created by: katie-bCreated on: 27-03-14 09:32 73254618 Across 1. Air may become trapped in joints and cracks on a cliff face. When a wave breaks, the trapped air is compressed which weakens the cliff and causes erosion. (9, 6) 4. When a wave breaks, water is washed up the beach (5) 5. Acids contained in sea water will dissolve some types of rock such as chalk or limestone. (8) 8. Bits of rock and sand in waves grind down cliff surfaces like sandpaper. (8) Down 2. The backwash is stronger than the swash (11, 4) 3. The swash is stronger than the backwash. (12, 4) 6. Then the water runs back down the beach (8) 7. Waves smash rocks and pebbles on the shore into each other, and they break and become smoother. (9)
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