Question

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

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

Answer 1

The Correct Option is B

Earth's magnetic field plays a crucial role in deflecting and trapping charged particles from the solar wind, creating radiation belts around the planet. The charged particles from the solar wind, known as cosmic rays, follow the Earth's magnetic field lines and become concentrated near the poles, resulting in higher intensity at the poles compared to the equator. This phenomenon is known as the auroral ovals, where the charged particles interact with the atmosphere and produce the Northern and Southern Lights (auroras).