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Diagram of Earth is given . Answer the q...

Diagram of Earth is given . Answer the question :
(a)Label the regions marked as 1,2,3 and 4
(b)Give thickness of the above four regions .
(c )Name important elements present in these regions.
(d)Give alternative name of central (core) part of the earth and that of mantle.
(e)Name the galaxy to which our solar system belongs .

Text Solution

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(a)1.Earth crust 2.Mantle 3.Outer core 4. Inner core
(b)1.Earth crust -20-25 miles 2.Mantle -1800 miles 3.Outer core -1400 miles 4.Inner core -800 miles
(c )1.Silica and aluminium 2.Silica , magnesium and manganese 3 & 4 . Iron and Nickel
(d)Baryosphere or nife , Pyrosphere .
(e)Akash Ganga or The Milky way.
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