Earth’s ozone layer

exists only over antarctica

has been thickening over the past several years

traps carbon dioxide in the stratosphere

filters harmful ultraviolet radiation from the sun

Earth’s ozone layer filters harmful ultraviolet radiation from the sun.

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.