Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Knowledge Geography (World Geography)
The most effective factor in formation of oceanic currents is:
1
Salinity difference
2
Thermal variation
3
Prevalent winds
4
More than one of the above
5
None of the above