(a) different types of cells A, B and C (b) structure D
(c) the waxy, water-repellent layer E
(d) provide a stable heading for the above diagram​

of those who start drinking before they're 15 will develop alcohol dependence

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."

the answer is c.

by: nicholas dooley

d. changes in climate and historical records

hope this