Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Environmental Science Environmental Geosciences
In the layered structure of the Earth, mantle is mostly made up of
A. Na and K
B. Mg and Fe
C. Ni
D. Si
E. AI
Choose the correct answer from the options given below:
1
A and B only
2
B and C only
3
B and D only
4
A and E only