Answer:
The inner core is solid, the outer core is liquid, and the mantle is solid/plastic It is known as the outer core .
Step-by-step explanation:
The mantle is divided into several layers: the upper mantle, the transition zone, the lower mantle, and Dā (D double-prime), the strange region where the mantle meets the outer core. The upper mantle extends from the crust to a depth of about 410 kilometers (255 miles).