Biology, 21.11.2019 02:31 toopretty15

Why do convergent oceanic plates subduct, but continental plates do not usually respond in this way?

(a) oceanic plates and continental plates are about the same density, so they mix with each other at boundaries.

(b) oceanic plates are made of dense rock; therefore they sink into the asthenosphere more readily. continental plates are made of lighter more buoyant rock.

(c) oceanic plates are made of very dense rock; therefore they rise into the asthenosphere more readily. continental plates are made of dense rock so they rise too.

(d) oceanic plates are made of less dense rock; therefore they rise into the asthenosphere more readily. continental plates are made denser rock.

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Why do convergent oceanic plates subduct, but continental plates do not usually respond in this way?...

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