Question

The mantle:

is made of solid rock
contains more iron than the crust
is as hot as the surface of the sun
all of the above

Answer 1

i have a couple questions about biology

Answer 2

The Earth’s mantle is about 2,970 km thick, making up about 84% of the Earth’s total volume. You might think it’s a liquid, since volcanoes erupt lava from the mantle. But actually, the mantle is mostly solid rock.