Question

In an ocean-continent convergent boundary _____.
a volcanic island arc forms directly over the trench
the lightest plate will subduct
there is an absence of shallow focus earthquakes
volcanic mountains form 100-3-- kilometers from the trench

Answer 1

The oceanic plate subducts beneath the continental plate because the continental plate is less dense and floats over it.
The oceanic plate usually sinks into the earth's mantle where it melts and will be recycled to make new oceanic crust
The place where the oceanic plate subducts into the mantle is usually marked by a volcanic mountain range, a good example would be the Cascade Mountains in the Pacific Northwest..

Answer 2

thank you Ryaan that helped out