Question

How is the inner core of the earth?

• A. Liquid
• B. Solid
• C. Both A & B
• D. None of these

Answer 1

Answer: (B)

Solid

• So, even though it is hotter in the inner core, the pressure in the core is also higher, and you can have solid iron-nickel instead of liquid.
  
• It is made of iron and nickel.
  
• This is above the Earth's solid inner core and below the mantle. Its outer boundary is 2,890 km (1,800 mi) beneath the Earth's surface..
  
• Convection of liquid metals in the outer core creates the Earth's magnetic field.