Question 1

To serve as a geologic clock, a process must

Accepted Answer

A) have been operating since the beginning of Earth. 
B) be uniform (or at least subject to averaging). 
C) be capable of being measured. 
D) All of the above. 
A) have been operating since the beginning of Earth. 
B) be uniform (or at least subject to averaging). 
C) be capable of being measured. 
D) All of the above.

Question 2

The oldest fossils are about how many years old?

Accepted Answer

A) 4.5 billion years 
B) 3.5 billion years 
C) 250 million years 
D) 10,000 years 
A) 4.5 billion years 
B) 3.5 billion years 
C) 250 million years 
D) 10,000 years

Question 3

Faults, folds, and igneous intrusions are always younger than the rock layers in which they are found.

Accepted Answer

A) True 
 B)False

Question 4

The dominant life forms in the Cambrian period were

Accepted Answer

A) dinosaurs. 
B) amphibians. 
C) trilobites and brachiopods. 
D) algae and bacteria. 
A) dinosaurs. 
B) amphibians. 
C) trilobites and brachiopods. 
D) algae and bacteria.

Question 5

The principle of uniformity requires you to believe that the geologic features you see today were formed in the past by the same processes we observe today.

Accepted Answer

A) True 
 B)False

Question 6

Evidence for the presence of an unconformity in the formation below is given by

Accepted Answer

A) the uptilting of the beds in layer 1. 
B) the erosion that must have taken place at the boundary of 1 and 2. 
C) the new sediment type deposited at the boundary of 2 and 3. 
D) All of these are example of unconformities. 
A) the uptilting of the beds in layer 1. 
B) the erosion that must have taken place at the boundary of 1 and 2. 
C) the new sediment type deposited at the boundary of 2 and 3. 
D) All of these are example of unconformities.

Question 7

A road cut shows layers of sedimentary rock that are uptilted.From this observation one could conclude that the rocks

Accepted Answer

A) have been subjected to deformational stress. 
B) were formed by deposition of sediment on a sloping surface. 
C) were formed on land instead of under water. 
D) None of the above. 
A) have been subjected to deformational stress. 
B) were formed by deposition of sediment on a sloping surface. 
C) were formed on land instead of under water. 
D) None of the above.

Question 8

It took a long time before people recognized the connection between fossils and living organisms.

Accepted Answer

A) True 
 B)False

Question 9

The science of deciphering the history of life from the fossil record is called archeology.

Accepted Answer

A) True 
 B)False

Question 10

If you were hunting dinosaur fossils, you would be examining rocks from which era?

Accepted Answer

A) Precambrian 
B) Paleozoic 
C) Mesozoic 
D) Cenozoic 
A) Precambrian 
B) Paleozoic 
C) Mesozoic 
D) Cenozoic

To serve as a geologic clock, a process must

The oldest fossils are about how many years old?

Faults, folds, and igneous intrusions are always younger than the rock layers in which they are found.

The dominant life forms in the Cambrian period were

The principle of uniformity requires you to believe that the geologic features you see today were formed in the past by the same processes we observe today.

Evidence for the presence of an unconformity in the formation below is given by

A road cut shows layers of sedimentary rock that are uptilted.From this observation one could conclude that the rocks

It took a long time before people recognized the connection between fossils and living organisms.

The science of deciphering the history of life from the fossil record is called archeology.

If you were hunting dinosaur fossils, you would be examining rocks from which era?

What Is Science

Motion

Energy

Heat and Temperature

Wave Motions and Sound

Electricity

Light

Atoms and Periodic Properties

Chemical Bonds

Chemical Reactions

Water and Solutions

Organic Chemistry

Nuclear Reactions

The Universe

The Solar System

Earth in Space

Rocks and Minerals

Plate Tectonics

Building Earths Surface

Shaping Earths Surface

The Atmosphere of Earth

Weather and Climate

Earths Waters

Filters

Exam 21: Geologic Time

To serve as a geologic clock, a process must

The oldest fossils are about how many years old?

Faults, folds, and igneous intrusions are always younger than the rock layers in which they are found.

The dominant life forms in the Cambrian period were

The principle of uniformity requires you to believe that the geologic features you see today were formed in the past by the same processes we observe today.

Evidence for the presence of an unconformity in the formation below is given by

A road cut shows layers of sedimentary rock that are uptilted.From this observation one could conclude that the rocks

It took a long time before people recognized the connection between fossils and living organisms.

The science of deciphering the history of life from the fossil record is called archeology.

If you were hunting dinosaur fossils, you would be examining rocks from which era?

What Is Science

Motion

Energy

Heat and Temperature

Wave Motions and Sound

Electricity

Light

Atoms and Periodic Properties

Chemical Bonds

Chemical Reactions

Water and Solutions

Organic Chemistry

Nuclear Reactions

The Universe

The Solar System

Earth in Space

Rocks and Minerals

Plate Tectonics

Building Earths Surface

Shaping Earths Surface

The Atmosphere of Earth

Weather and Climate

Earths Waters

Filters