List and describe. the layers of the earth surface
1 answer:
1) Crust:
• outermost layer of the earth
Continental crust : crust beneath the continents
- less dense , granite rock
Oceanic crust : crust beneath the oceans
-denser , basalt rock
2) mantle
-largest layer of earth
Lithosphere : Uppermost mantle
-rigid and brittle
Asthenosphere : lower mantle
- high pressure and temperature brings the rock close to its melting point for it to be easily deformed.
3) Core
-centre of the earth
-solid & nickel
Inner core
- solid layer because of high temperature and pressure being exerted by surrounding layers
Outer core
-liquid layer.
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