Question

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 1

HEY!!!

REQUIRED ANSWER IS :-

A) Earth's outer core contains liquid that conducts electricity.

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Answer 2

The correct answer is option B) Earth's core contains a large amount of iron.

The dynamo theory explains how celestial bodies develop magnetic fields. According to the theory, the magnetic field is generated by the motion of a rotating and electrically conducting fluid.

This fluid in the case of Earth, is iron and nickel that is trapped in the core of Earth.