4984343
Descripción
Fichas por Emily Herbert, actualizado hace más de 1 año
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Creado por Emily Herbert
hace más de 8 años
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| Pregunta | Respuesta |
| What are the four types of erosion? | Abrasion, Attrition, Hydraulic Action and Solution |
| What is abrasion? | they fling sand and pebbles against the rock. These wear it away like sandpaper. |
| What is attrition? | the bits of rock that break off also get worn down, by knocking against each other. |
| What is Hydraulic Action? | they force water into the cracks in the rock. That helps to break it up. |
| What is solution? | they dissolve soluble material from the rock. |
| What affects erosion? | soft rock, hard rock, wind, fetch etc. |
| What is soft rock? | its less resistant, e.g clay and sands, more easily eroded, landslides and cliff slumping caused by marine erosion and weathering. |
| What is hard rock? | more resistant, e.g chalk and granite, less easily eroded, rock fall caused by erosion at base of cliff. |
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