together with the crust, we call it the lithosphere. below the lithosphere is a layer of upper mantle called the asthenosphere. this is made up rock that is fluid and can move. it is this fluidity that powers the movement of the tectonic plates of the earth's crust.
explanation: is tru
Why is Biodiversity Important? A healthy biodiversity offers many natural services. Species depend on each other. Soil, bacteria, plants; the Nitrogen Cycle. Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play.