9. Which is evidence that supports the dynamo theory? A.Earth's outer core contains liquid that conducts electricity B.Earth's core contains a large amount of iron C.Granite and basalt conduct electricity D.Convection occurs in Earth's inner core
Option B Solution: In physics, the dynamo theory proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field. Earth's crust core contains a large amount of iron and nickel is the evidence of the dynamo theory.
