| Front | What is a collision plate margin? |
| Back | At a collision plate margin, the two plates are moving towards each other. AS both plates are continental, neither of them can be subducted. Thererfore the crust is crumpled upwards to form fold mountain. |
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| Front | What is the crust? |
| Back | The crust is the outer layer of the Earth. It is a thin layer between 0-60 km thick. The crust is the solid rock layer which we live. It is eather continental or oceanic |
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| ID (hidden) | 07487c3794044ee6a671918e14de75da-ao-2 |
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