Draw neat diagrams, label them and
explain.
(A) The interior of the earth
Answers
Answer:
Our earth is made up of several concentric layers with one inside another. These layers are three in number- crust, mantle and core.
Crust: It is the uppermost layer over the earth's surface. It is the thinnest of all the layers. It is about 35km on the continental masses and only 5km on the ocean floors.
The continental masses are made up of silica and alumina. It is thus called sial (si-silica and al-alumina). The oceanic crust mainly consists of silica and magnesium. It s thus called sima(si-silica and ma-magnesium).
Mantle: It is just beneath the crust. It extends up to a depth of 2900km below the crust.
Core: It is the innermost layer. Its radius is about 3500km. It is mainly made up of nickel and iron and is known as nife(ni-nickel and fe-ferrous, Le, iron). The central core has very high temperature and pressure.
Explanation:
Answer:
hope it's helpful to you
in the earth interior have 3 4 layer 1st layer is inner core 2nd layar outer core 3rd mantal and 4th is crust.