Problem 11
Which of the following conditions makes fossil formation more likely? A) buried slowly B) attacked by scavengers C) made of hard parts D) composed of soft parts
Problem 12
What are cavities left in rocks when a shell or bone dissolves called? A) casts C) original remains ?) molds D) carbon films
Problem 13
To say "the present is the key to the past" is a way to describe which of the following principles? A) superposition C) radioactivity B) succession D) uniformitarianism
Problem 13
How is a fossil cast different from a fossil mold?
Problem 14
Describe the principle of uniformitarianism.
Problem 14
A fault can be useful in determining which of the following for a group of rocks? A) absolute age C) radiometric age B) index age D) relative age
Problem 15
Which of the following is an unconformity between parallel rock layers? A) angular unconformity B) fault C) disconformity D) nonconformity
Problem 15
Explain how the original remains of an insect can be preserved as a fossil in amber.
Problem 17
Describe the process of radioactive decay. Use the terms isotope, nucleus, and half-life in your answer.
Problem 17
Which process forms new elements? A) superposition B) uniformitarianism C) permineralization D) radioactive decay
