How can an artificial reef be considered favorable effect of building a plane? Please no link! Help me please. Due on 10:00 pm Pacific Standard Time.

BY THE WAY IN MATERIALS ARE USED

IN IT'S TIME OF CONVINIANCE

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.