Question

The boundary between the mantle and the core lies at a depth of approximately ________ .

• A. 3000 kilometers
• B. 300 kilometers
• C. 1000 kilometres
• D. 5000 kilometers

Answer 1

The correct option is A 3000 kilometers

Earth mainly consists of four layers namely crust, mantle, outer core and inner core.

The boundary between the mantle and the core lies at a depth of approximately 2891 km or 3000km.

The core–mantle boundary of the Earth lies between the planet's silicate mantle and its liquid iron-nickel outer core