Q919
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
AnswerC.
Granite and basalt conduct electricity
D.
Convection occurs in Earth's inner core
Answer: Option B
Solution
Answer: 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.