Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Knowledge Geography (World Geography) Geomorphology
What best describes the Earth's crust?
1
It's the hottest layer of the Earth.
2
It's the outermost and thinnest layer of the Earth.
3
It's principally composed of nickel and iron.
4
More than one of the above
5
None of the above