What can limestone deposits tell scientists about the environment in which they evolved?

The formation of limestone takes place in shallow warm marine waters. Limestone forms from the collection of waste like shells, fecal matter, coral, and algal—so tropical marine animals. Since limestone is a sedimentary rock formed from tropical marine animal's leftovers, limestone deposits can tell scientists that the environment in which they evolved from was a tropical one.

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.