alleryWhich layer lies directly beneath the lithosphere and has low viscosity?
AAsthenosphere
BTroposphere
CExosphere
DBiosphere
Answer & Solution
Correct answer: A. Asthenosphere
1. The lithosphere rides on a softer layer.
2. That layer is the asthenosphere, of relatively low viscosity.
3. Troposphere and exosphere are atmospheric layers, and the biosphere is the realm of life.
_Source: Wikipedia, Earth, Internal structure_
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