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earth stuffs
| Term | Definition |
|---|---|
| what landform does convergent plate boundary's cause | mountains, trenches, and volcanoes |
| what landform does divergent plate boundary's cause | volcanoes, and valley's |
| what landform does transform plate boundary's cause | fault lines |
| what is the stress of each plate boundary | convergent are caused by compression divergent are caused by tension transform are caused by shearing |
| why does convection affect plate movement | magma cools and sinks then heats up and rises, it puts pressure on the plates pushing them is convection moves the magma underneath the crust |
| how can you tell what part of the ocean floor is the oldest | the further away from the divergent plate boundry the older the sea floor |
| define subduction | the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate usually resulting from a convergent plate boundary |
| what is the landform caused by sea floor spreading | when the sea floor spreads, the crust is pulled apart allowing magma to come up from the mantle creating volcanoes |
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