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
Correct Answer: Earth's core contains a large amount of iron
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.
