In 2008, Andrew Elliot and Daniela Niesta ran a fascinating series of experiments in which men rated the same woman as more attractive when her photograph was shown against a background as compared with white, gray, and a variety of other background colors.
O a. yellow
b. blue
O c. red
O d. green

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."