crust-the thinnest and the outermost layer of the earth that extend from the surface to about 32km below.
mantle-made up of silicate rocks and contrary to common belief of solid.
outer core-it is liquid due to the fact that s-waves cant trvel through this earth layer
inner core-made up of solid iron and nickel and has a radius of 3000kms.
- its temperatures reaches upto above 5000 degreeC. the extreme tem. could have molten the iron and the nickel but its solidified as a result of pressure frezzing .
-jacenth:)
