Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Knowledge Geography (World Geography) Geomorphology
The partially molten upper mantle material called ___________ is a mechanically vulnerable layer beneath the lithosphere characterised by low seismic wave velocity and high attenuation.
1
asthenosphere
2
magnetosphere
3
mesosphere
4
More than one of the above
5
None of the above