Question

use the drop - down menu to complete the statement about earths magnetism.earths magnetic field is generated in the core, which is made of that is constantly

Explanation:

To complete the statement about Earth's magnetism: Earth's core (specifically the outer core) is made of molten iron and nickel (or "liquid iron" as a key component) that is constantly moving (convecting). The movement of this conductive, molten material in the outer core, combined with Earth's rotation, generates electric currents which in turn produce the magnetic field (via the geodynamo effect). So the first drop - down should likely be filled with a material like "iron (and nickel)" (in molten/liquid form) and the second with a term like "moving" (or "convecting", "flowing" to describe the motion of the molten core material).

Answer:

First drop - down: molten iron (and nickel)
Second drop - down: moving (convecting)