Q. Electrically charged particles from space travelling at speeds of several hundred km/sec can severely harm living beings if they reach the surface of the earth. What prevents them from reaching the surface of the earth?

[A] The Earth’s magnetic field diverts them toward its poles

[B] Ozone layer around the Earth reflects them back to outer space

[C] Moister in the upper layers of atmosphere prevents them from reaching the surface of the Earth

[D] None of the statements (a), (b) and (c) is correct.

Answer: A
Notes:
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