Which of the statements are correct about Earth rsquo s crust 1 Continental crust is thicker than th...........

Geography Earth Geology

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Which of the statements are correct about Earth’s crust?

1. Continental crust is thicker than the oceanic crust.

2. Continental Crust, made up of granitic rock, is denser than the oceanic crust which is made up of Basaltic rock.

3. During Subduction, the continental crust, being denser, plunges under the oceanic crust.

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1 only

1&2 only

2&3 only

All of the above

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Explanation:

Continental crust is much thicker than Oceanic crust. Continental crust is around 40 km thick on average and can reach up to 70-80 km thickness under high mountain chains. Oceanic crust is around 8-10km thick.Oceanic crust made of basalt is denser than continental crust. It plunges under continental crust during continental-oceanic convergence. This process is called subduction.