Chapter 13 Review Question Preview (ID: 1176)


Review.

Trace or remains of an organism preserved in the earth's crust
a) fossil
b) mold
c) geologic time
d) cast

impression left in a rock by an organism
a) cast
b) fossil
c) mold
d) half-life

Process by which original plant or animal parts are replaced with minerals
a) mold
b) cast
c) fossil
d) petrification

Model of an organism
a) cast
b) mold
c) fossil
d) petrification

Total amount of time since the earth was formed
a) absolute dating
b) relative dating
c) geologic time
d) cast

method used to determine how old a rock layer is by comparing it to another rock layer
a) relative dating
b) absolute dating
c) geologic time
d) fossil

Method that determines the actual age of a rock or fossil
a) radioactive element
b) abolute dating
c) cast
d) mold

Fossil that provides clues to the age of the rock in which the fossil appears
a) index fossil
b) fossil
c) relative dating
d) cast

length of time it takes for half of the atoms of a radioactive element to decay
a) half life
b) relative dating
c) absolute dating
d) fossil

An element that breaks apart or decays to form other element
a) radioactive element
b) mold
c) cast
d) fossil

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