Inside our Earth lesson 2 grade 7

The right order of the layers of the Earth from outer to inner

• Mantle,Core,Crust

• Core,Mantle,Crust

• Crust,Mantle,Core

• Core,Crust,Mantle

The thickness of Mantle is

• 1900 KM

• 2900 KM

• 3900 KM

• 4900 KM

The thinnest layer of the Earth.

• Crust

• Mantle

• Core

The composition of continental crust.

• Silica + Alumina

• Silica + Magnesium

• Nickle + Ferrous

Igneous rocks are also called as

• `Magnetic rocks

• Primary rocks

• Metamorphic rocks

The radius of the earth is ______________ km.

Rocks which contains fossils are _______________

• Sedimentary rocks

• igneous

• metamorphic

The location of the deepest mine in the world_____________.

• Asia

• South Africa

• south America

The process of transformation of rock from one to another _______________

The fiery red molten magma is called ________________.