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Explain why tectonic activitys happen along the plate boundaries rather than in the middle of a plate

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Answer:

Tectonic Plates and Plate Boundaries

You can actually see New Zealand’s plate

The Earth’s outer shell, the lithosphere, consisting of the crust and uppermost mantle, is divided into a patchwork of large tectonic plates that move slowly relatively to each other. There are 7-8 major plates and many minor plates. Varying between 0 to 100mm per year, the movement of a plate is driven by convection in the underlying hot and viscous mantle.

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