Q: 45 (IAS/2012)

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 ?
question_subject: 
Geography
question_year: 
2012
question_exam: 
IAS
question_sub_subject: 
Physical Geography
question_topic: 
Universe
stats: 
0,5920,2944,5920,1512,488,944