Geologic Time Study Guide

Petrified wood is an example of

A mosquito trapped in amber is an example of

Subatomic particle determining the isotope of an atom is the (a)   .

Subatomic particle determining the atomic number of an atom is the (a)   .

Subatomic particle determining the charge and how the atom bonds to others is the (a)   .

C-14 is an isotope used to date

Eon is to era as

All types of unconformities have this in common:

A trilobite was abundant, wide-spread, easily identifiable and lived for a short time which makes it a(n)

The principle that Earth's history can be explained by current geologic processes is known as