Which of these would provide a scientist with the ability to date the age of an ice core? A) The presence of microscopic organisms trapped in the ice core B) The make up of the gases trapped in the ice core during formation C) A measure of the pressure the ice core was under before drilling it out with an auger D) The use of radiometric isotope analysis on the uranium-containing particulates trapped in the ice core

12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.