What type of material is often used to make Impressions of tool marks? A. cement mix
B. dental paste
C. porcelain clay
D. plaster of Paris​

During a fierce storm a large number of tall trees on an island are uprooted by the wind and die. most of the trees on the island are now short trees and produce seeds that grow into short trees. what concept is shown in this example? question 5 options: natural selection artificial selection genetic engineering gene splicing