Question

Rigid segments of the lithosphere are called


plates

asthenosphere

plumes

magma

Answer 1

I believe the correct answer is plates.

"According to the theory of plate tectonics, the cool and rigid lithosphere is separated into segments called plates. These plates move in a conveyor-belt fashion over the partially melted asthenosphere due to convection currents within the mantle."

Found it here: http://www.ccsf.edu/Departments/History_of_Time_and_Life/content/EarthStructure.htm

Hope this helps

Answer 2

plates