Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test People Development & Environment Hazards and Disasters Natural Disasters
Earthquakes which are destructive are those whose magnitude on the Richter scale is
1
greater than 5
2
greater than 7
3
greater than 9
4
More than one of the above
5
None of the above