The inner core is the innermost layer of the earth.
It is believed that the innermost layer of the earth, the inner core, is made mostly of iron and nickel.
The earths innermost layer is the Inner Core.
The inner core is the innermost physical layer of the Earth. The core is the innermost chemical layer.
It is the core
The inner core .
The layers of the Earth are crust- outer, mantle- middle, core- innermost.
The last layer in Earth is the inner core.
There is no layer of Earth that meets that description.
We are not sure whether the core of the earth is solid or not, therefor the innermost layer must be either the core, or the layer next to the core.
Inner core....made of iron
The innermost layer of the Earth, the inner core, is solid due to tremendous pressure despite being very hot. It is composed primarily of iron and nickel.
The innermost layer is the bone marrow.