Question

The central region between the crust of earth and core of earth is called
(A) Mantle
(B) Crust
(C) Core
(D) None of these

Answer 1

Hint: If we subdivide the Earth based on rheology, we see the lithosphere, asthenosphere, mesosphere, outer core, and inner core. However, if we differentiate the layers based on chemical variations, we lump the layers into the crust, mantle, outer core, and inner core.

Complete answer:

According to the fig. In 1 that is the core of earth in the inner core there is a hot, dense ball of (mostly) iron. It has a radius of about 1,220 kilometers (758 miles). The liquid outer core separates the inner core from the rest of the Earth, and as a result, the inner core rotates a little differently than the rest of the planet.
According to the fig. In position 2 that is the mantle of the earth. The mantle is the mostly-solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The other major type of rock found in the mantle is magnesium oxide. Other mantle elements include iron, aluminum, calcium, sodium, and potassium.
And in the 3rd point of the fig that is the crust of the earth. The crust is made of solid rocks and minerals. Beneath the crust is the mantle, which is also mostly solid rocks and minerals, but punctuated by malleable areas of semi-solid magma. At the center of the Earth is a hot, dense metal core.

So,The central region between the crust of earth and core of earth is called Mantle.

Note: The mantle under the crust is about 1,800 miles deep (2,890 km). It is composed mostly of silicate rocks rich in magnesium and iron. Intense heat causes the rocks to rise. They then cool and sink back down to the core.