BPSC – Combined Competitive Examination · প্রশ্ন 97
The average height of the Kosi plain above mean sea level is:
উত্তর দেখান ও ব্যাখ্যা
উত্তর: (C) 30 m
ব্যাখ্যা
The north Bihar plains slope only ~15–20 cm per km, so the Kosi plain is low and flood-prone.
- (A) ভুল
Wrong: far too high for the Ganga plain.
- (B) ভুল
Wrong: too high.
- (C) সঠিক
Correct: the very flat Kosi plain lies around 30 m above sea level.
- (D) ভুল
Wrong: 30 m is the accepted answer.