Which layer of earth does not contain silicates? outer core upper mantle oceanic crust asthenosphere?

The outer core does not contain silicate.

Option A

Explanation:

The mantle and the crust are made of silicate. Outer core contains nickel and iron. The core is the innermost layer of the earth and contains iron and nickel which are very hot materials because of the hot temperature of the core. The earth when cooled down, moved the high density materials like iron and nickel into the deep surface and low density materials moved to the surface.

the answer is:

c. islam and christianity

explanation:

islam and christianity are widely practiced in africa. islam is practiced due to its spread from the middle east into africa, and christianity is practiced due to the colonization of africa by the british empire.

where are the statements without that i cant you