A compound is a substance that contains two or more elements close elementA pure substance that is made from only one type ... rocks are formed by magma that has cooled slowly, deep underground ...

Granite hardens within the earth’s crust ... causing them to change into another type of rock. They are usually resistant to weathering and erosion and are therefore very hard-wearing.

It features scenes of farmers tilling soil, majestic mountain roads, sedimentary rock formations, and granite and marble quarries. The film also highlights natural phenomena such as volcanic activity ...