Magma erupts through the crust and then reaches earth’s surface
Answer:
seafloor spreading
Explanation:
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor.
The Crust and Lithosphere (which are almost synonymous) are not typically divided into two distinctive layers, so we can reject them.
The correct answer is is the core: (b). The inner core is solid and it's made of iron and nickel. The outer layer is liquid and this is the reason for the differentiation of the two parts.
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sorry if you get this one wrong :(
i guess it is other planets it depends on which planet you live on
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