Problem 25
How does the potential for remains to be preserved change as the rate of burial by sediment increases?
Problem 27
Start your own fossil collection. Label each find as to type, approximate age, and the place where it was found. Most state geological surveys can provide you with reference materials on local fossils.
Problem 27
What other factors affect the potential for the remains of organisms to become fossils?
Problem 28
How could a fossil of an organism that lived in ocean water millions of years ago be found in the middle of North America?
Problem 28
Calculate how many half-lives have passed in a rock containing one-eighth the original radioactive material and seven-eighths of the daughter product.
