The mantle
The mantle is the hot rock.
Not exactly--the mantle is comprised of semisolid rock, or magma.
The layer of the Earth that is hot and semi-solid is the mantle. The mantle is located between the Earth's crust and core and is made up of molten rock, called magma, that circulates due to heat convection from the Earth's core.
The outer core.
C.) the thickest layer of hot rock
No, the inner part of the Earth's crust is not hot melted rock. The inner core of the Earth is made up of solid iron and nickel, while the outer core is composed of liquid iron and nickel. The hot melted rock is found in the mantle layer beneath the crust.
the mantle
The semi-solid layer of the Earth is called the mantle. It lies between the Earth's crust and core and is composed of hot, flowing rock.
Clay, typically, is the only soft and plastic rock. Unless you were thinking of the Mantle, which forms the bulk of the planet Earth. It is hot enough to be "molten" although in fact is extremely viscous.
The layers of the Earth by their physical composition are: Crust - the outermost layer made of solid rock and soil Mantle - composed of hot molten rock called magma Outer core - a liquid layer made of iron and nickel Inner core - a solid layer comprised of iron and nickel.
hot burning rock and magma
The molten rock that erupts from volcanoes ultimately comes from Earth's mantle, which is a very hot layer of rock. It is hot enough that some if its rock can melt and rise through the crust.