The mantle is made up of which structural zones?

ANSWER:

The "mantle" is made up of two structural zones: the lithosphere and the asthenosphere.  

EXPLANATION:

The Mantle is the layer of rock that lies in between "Earth's Crust and Core". The thickness of mantle is about "2,900 KM". The outer part of the earth which is solid is called lithosphere. The structural zone of mantle that is responsible for the movement of tectonic plates is lithosphere.  Asthenosphere is the upper mantle layer which lies just "below the lithosphere".

This country likely has a high total fertility rate (tfr).

2. x2 + 8x + 12 = 0 to prove: x = -6 or x = -2