The carbon-dioxide content in the earth's atmosphere before 1500 a. d. was between 200 and 300 ppm. the carbon dioxide
content today is about 450 ppm. which single historical development can be blamed for this increase?
select one:
o a. the election of george bush
o b. the industrial revolution
o c. splitting of the atom
o d. the invention of agriculture

i think it's c

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.