Steno's Second Principle Says That

The natural ordering known as fossil succession A) cannot be used to establish the relative age of rocks that lie far apart. B) was one of the few things that eighteenth-century surveyor William Smith did not notice about the fossils he collected. C) reflects the sequence of organic evolution and extinction through time. D) has to do with the characteristics of trilobites from the Early, Middle, and Late Cambrian Periods.

Naturally occurring radioactive materials A) decay into other materials at variable rates. B) provide us with good estimates of the actual ages of ancient rocks. C) are produced annually, like similar to rings in a tree trunk. D) establish relative ages of rocks on a global scale, but only in rocks with abundant fossils.