Around how thick is Earth´s crust?

Which animals dig the deepest burrows?

In which country is Cappadocia, the world´s deepest underground city located?

Where is the deepest point of Oceanic Crust?

Around how thick is the Mantle?

As you get closer and closer to Earth´s core what happens to the pressure?

In which layer are Earthquakes born?

Earth´s Outer Core is Bout the same size as which planet?

Around what temperature is the Inner Core?

If you could fall to the centre of the Earth around how long would it take to reach the centre?

Earth´s crust is a blanket to the Mantle because it is rich in radioactive elements. Which is not a radioactive element of the crust?

How far underground is the deepest Gold Mine in the world Mponeng Gold Mine?

Oceanic crust is thinner and younger than Continental Crust but how much of the Earth does it cover?

Earth´s Upper Mantle is made up of four main elements, which are these is NOT a main element of the Upper Mantle?