<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
What exactly is at the core of the earth?
<|assistant|>
At the core of the earth is an area over 4000 kilometres in diameter composed of an incredibly hot, dense mix of iron and nickel called the inner core, surrounded by a even hotter liquid layer of iron and nickel called the outer core. Together, the inner and outer cores make up the outer mantle of the earth and compose over 85% of the earth’s mass.