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Q. 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 - Option(B)
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Explanation by: Admin
In physics, the dynamo theory proposes a mechanism by which a celestial body such as Earth or a star generates a magnetic field.

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