coats 0.0 / 5 ? GeographyCoastal zonesGCSEAQA Created by: ELMCreated on: 25-03-15 19:19 what is freeze thaw weathering? temperature changes expands and contracts joints and cracks in the rock 1 of 5 what is biological weathering plants +roots grow into cracks in the rocks and weaken them. also animals burrow down and break up rocks and weaken the grownd. 2 of 5 what is chemical weathering? corrosion by the sea water of rocks like chalk and limestone. also by acid rain 3 of 5 what is wetting and drying ? soft rocks like clay expand and contract as they absorb water 4 of 5 what is hydrolic action ? the power of waves hitting the cliff face. parts of the cliff break away air and water are forced into 5 of 5
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