CBSE Geography Class 7
Inside Our Earth
Inside Our Earth - Chapter Wise CBSE Solved Question and Answer Based On NCERT
Points To Remember:
- Crust is the upper most layer of the earth. It is the thinnest among all the layer of the earth.
- Mantle is the second layer of the earth extends up to the depth of 2900 km.
- Crust is the upper most layer of the earth. It is the thinnest among all the layer of the earth.
- Mantle is the second layer of the earth extends up to the depth of 2900 km.
- Core is the inner most layer of the earth made up of nickel and iron.
- Igneous, sedimentary and metamorphic are the three major types of rocks.
- Minerals are naturally occurring substance which has certain physical properties and definite chemical composition.
- Fossils are the remains of the dead plants and animals trapped in the layers of rocks.
- The radius of the earth is 6371 km.
- The crust forms only 0.5 percent of the earth.
- The deepest mine in the world is in South Africa.
- There are two types of igneous rocks: Intrusive and Extrusive.
