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
Answer: Option B
Solution (By Examveda Team)
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.
This Question Belongs to General Knowledge >> Physics
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