KCET 2022 Physics Solved Paper

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Question : 29 of 60

Marks: +1, -0

Which of the following statements proves that Earth has a magnetic field?

Earth is surrounded by ionosphere
A large quantity of iron-ore is found in the Earth
The intensity of cosmic rays stream of charged particles is more at the poles than at the equator.
Earth is a planet rotating about the North south axis

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