Most of the Earth\'s crust is oceanic, having formed at a spreading center. Why

Question

Most of the Earth's crust is oceanic, having formed at a spreading center. Why is very little oceanic crust preserved on land?(circle Best answer)

(a)acid rain has dissolved most oceanic crust.

(b) Oceanic crust is less dense than continental crust so it is uplifted and eroded

(c)oceanic crust is so metamorphosed geologists can't recognize it on land

(d) oceanic crust weathers more easily than continental crust

(e) most oceanic crust gets subducted

(f) oceanic crust gets subducted; oceanic crust fossils we can't Continental recognize it as oceanic crust.

Explanation / Answer

answer : e

most of the oceanic crust that is being created at mid oceanic ridge will be destructed along the subduction zones. that is why there is no oceanic crust older than 200 million years.

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