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Oceanic lithosphere subducts (sinks into the asthenosphere) because ________. th

ID: 110501 • Letter: O

Question

Oceanic lithosphere subducts (sinks into the asthenosphere) because ________.

the pressure from two plates colliding forces one plate into the asthenosphere

The convection of the mantle pulls the lithosphere into the asthenosphere

old oceanic lithosphere is more dense that the asthenosphere

the upwelling magma at divergent boundaries pushes the lithospheric plate into the asthenosphere

the pressure from two plates colliding forces one plate into the asthenosphere

The convection of the mantle pulls the lithosphere into the asthenosphere

old oceanic lithosphere is more dense that the asthenosphere

the upwelling magma at divergent boundaries pushes the lithospheric plate into the asthenosphere

Explanation / Answer

Answer: old oceanic lithosphere is more dense that the asthenosphere Explanation: Initially oceanic lithosphere are less denser than the lithosphere but as it ages, it becomes more dense and starts sinking into the lithosphere.