Approximately how thick is the semi-rigid outermost layer of the Earth comprising the crust and uppermost mantle?
A) 2-5 km thick
B) 25-60 km thick
C) 100-150 km thick
D) 400-650 km thick

Question

Quizplus · Accepted Answer

The semi-rigid outermost layer of the Earth, known as the lithosphere, comprises the crust and the uppermost mantle and is approximately 100-150 km thick.

Approximately How Thick Is the Semi-Rigid Outermost Layer of the Earth