UPSC Civil Services Prelims 2012
Question 34 of 66Geography
Electrically charged particles from space traveling 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?
AThe Earth’s magnetic field diverts them towards its poles.
BOzone layer around the Earth reflects them back to outer space.
CMoisture in the upper layers of the atmosphere prevents them from reaching the surface of the Earth.
DNone of the statements (a), (b), and (c) given above is correct.
Correct Answer
The correct answer is hidden
Explanation
59 words hidden ... The ozone layer is important for absorbing harmful ultraviolet radiation, but it does not perform the main shielding ... 58 words hidden