Final answer:
When plates move apart at a divergent plate boundary, features like mid-ocean ridges and volcanic activity can form.
Step-by-step explanation:
When plates move apart at a divergent plate boundary, several geological features can be formed. One of the main features is a mid-ocean ridge, where the plates are spreading and new crust is formed. This can result in the formation of underwater mountains and volcanic activity. In some cases, the spreading plates can also result in the formation of shallow earthquakes. Subduction zones, on the other hand, occur when plates converge and one plate is forced beneath the other.
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