Teaching UP B.Ed (Paper 1 & 2) Mock Test 2025 General Knowledge Geography (World Geography) Geomorphology
The main minerals of oceanic crust are:
(A) Magnesium
(B) Alumina
(C) Silica
(D) Nickel
1
Only (A)
2
Only (B) and (C)
3
Only (A) and (C)
4
Only (C) and (D)