Question
What do you know about earth's interior?
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Answer
The earth is made up of several concentric layers with one inside another.
- Crust: The uppermost layer over the earth’s surface is called the crust. It is the thinnest of all the layers. It is about 35km. on the continental masses and only 5km. on the ocean floors.
- Mantle: Just beneath the crust is the mantle which extends up to a depth of 2900km. below the crust.
- Core: The innermost layer is the core with a radius of about 3500km. It is mainly made up of nickel and iron and is called nife. The central core has very high temperature and pressure.
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