What do scientists think is the dominant force that drives plate movements?
a) convection cells within the outer core b) slab pull from subducted plates
c) convection cells within the asthenosphere
d) slab push from seafloor spreading

C) convection cells within the asthenosphere.

Explanation:

Scientist have had this theory for the past quarter of a century and they still believe it.

that scientist would be robert hooke

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.