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What occurs at a constructive plate margin?

A constructive plate margin can also be called a divergent plate margin, and it is where two tectonic plates move in opposite directions away from one another. Magma rises up between the plates forming new crust (hence constructive plate margin). 

Volcanos are common here due to the rising magma, and earthquakes can occur but they are generally minor. 

Answered by Sophie C. Geography tutor

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