Question

1 the study of seismic waves has shown that one layer of earths interior is made of molten iron and nickel. which layer is this? a outer core b asthenosphere c mesosphere d inner core

Explanation:

Seismic wave studies show that the outer core is liquid (molten) and composed mainly of iron and nickel. The inner core is solid. The mesosphere is part of the mantle (solid - rocky). The asthenosphere is a semi - molten part of the upper mantle (not composed of iron and nickel like the core).

Answer:

A. outer core