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Consider the following statementsThe mean thickness of oceanic crust is lesser than that of the continental crustAsthenosphere, the lower portion of the mantle, is the main source of magma that finds its way to the surface during volcanic eruptionsThe density of material at the mantle core boundary is getting increased towards the centre of the earthThere is a system of mid-ocean ridges more than 70,000 km long experiences frequent volcanic eruptionsWhich is/are INcorrect?

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Consider the following statements<br>The mean thickness of oceanic crust is lesser than that of the continental crust<br>Asthenosphere, the lower portion of the mantle, is the main source of magma that finds its way to the surface during volcanic eruptions<br>The density of material at the mantle core boundary is getting increased towards the centre of the earth<br>There is a system of mid-ocean ridges more than 70,000 km long experiences frequent volcanic eruptions<br>Which is/are INcorrect?






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