Glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as

Glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking.

Explanation:

Glacial erosion consists of two main processes. The first phase is ‘plucking’ wherein there is erosion and transport of rocks. With moment of glacier, the water melts below the glacier which seeps into the cracks underlying the bedrock. The water would freeze and melt resulting in weakening of bonds that hold the pieces of bedrock. Due to the loosening of rocks , it is plucked from their rocky base by the moving glaciers and transported to another site.

On the basis of the above explanation is:  

Glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking.