Inside our Earth

The things present inside the earth are :

• Crust

• Mantle

• Core

• Animals

The uppermost layer over the earth’s surface is called :

• Crust

• Mantle

• Core

TRUE/ FALSE

Rocks have definite chemical composition.

• true

• false

Which one of the following called as primary rocks?

• Metamorphic rocks

• Igneous rocks

• sedimentary rocks

• Hard rocks

The core is made up of

• Silica and magnesium

• Nickel and iron

• Coal and marble

• Silica and alumina

Which layer of the Earth has very high temperature and pressure?

• Core

• Crust

• Mantle

• Both a and c

The fossil fuels are found in ____________ rocks

• igneous

• sedimentary

• metamorphic

• volcanic

Marble is a type of ___________ rock

• metamorphic

• igneous

• expensive

• sedimentary

The thinnest layer of the earth is the..

• mantle

• outer core

• crust

• inner core

What forms the oceanic crust?

• Silica and alumina

• Silica and magnesium

• Nickel and iron

• None of the above