Question

choose the correct answer. how does oceanic crust change as it descends into the earths mantle at a subduction zone? it becomes very cold. it remelts. it explodes.

Explanation:

At a subduction zone, as the oceanic crust descends into the Earth's mantle, it is subjected to high - temperature and high - pressure conditions. These conditions cause the crustal material to remelt. It doesn't become very cold as the mantle is hot, and it doesn't explode in the typical sense.

Answer:

It remelts.