Why is earth's outer core hotter than earth’s oceanic crust? a. earth’s oceanic crust is denser than earth’s outer core is. b. earth’s oceanic crust has lava flowing from the mantle. c. earth’s outer core has a composition of solid iron and nickel. d. earth’s outer core is deeper within earth than oceanic crust is. i need asap!

C. Earth’s outer core has a composition of solid iron and nickel.

Explanation:

The earth outer core is a fluid layer that is about 2400 km thick and is composed of iron and nickel and the transitions form the outer and inner core is about 5,150 km beneath the surface of the earth.  Due to this the temperature the outer core is about as 3,000–4,500 K thus it can be said that the outer core has a low viscosity fluid that convects turbulently. And this heat is then transferred to the mantel and thus the old inner core grows at the expanse of the outer core.

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