SOMEBODY HELP PLSSS ILL GIVE BRAINLIEST

D

Explanation:

Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata. They also have a wide geographic distribution and a short range through time

D

Explanation:

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.