Question

Thickness of Inner Core is ------

• A. 5150 -6370 km
• B. 2900 - 5150 km
• C. None of the above
• D. All of the above

Answer 1

Answer:

A. 5150 -6370 km

Inner Core

• Thickness - 5150 -6370 km

• Composition: Solid iron (~85%) and nickel (~10%)

• Temperature: 5,000°C - 6,000°C (9,032°F - 10,832°F)

• Pressure: 3.5 million times atmospheric pressure

• Density: 13.0 g/cm³

• Radius: approximately 1,220 km (758 miles)