Respuesta :
Answer:
B. a denser plate moves under a less dense plate
Explanation:
subduction is heavier plate moving under lighter plate
The best description of subduction is a a denser plate moving under a less denser plate.
Subduction occurs in a tectonic plate when one edge of a plate goes below another plate edge.
It occurs when a plate that is denser or heavier goes under another plate that is lighter. The lighter plate is the young one.
These two would grind against each other. An effect of this grinding movement is that there would be earthquakes.
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