Question

identify the two main materials that can be found in the inner and outer core layers of earth. a iron b rocks c oxygen d nickel e dead plants

Explanation:

The Earth's inner and outer core are primarily composed of iron and nickel. Rocks are part of the crust and mantle, oxygen is not a main core material, and dead plants are organic matter not found in the core. So the correct materials are iron (A) and nickel (D).

Answer:

A. iron, D. nickel