How are populations involved in speciation? O Population gene pools must become isolated.
O Interbreeding with other populations must occur.
O Large populations must decrease in number.
O Small populations must increase in number.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

fkk you n*gga