Question 1

There is no single place on Earth where rocks were continuously preserved or formed.

Accepted Answer

A) True 
 B)False

Question 2

Explain what the requirements to be considered an index fossil.

Accepted Answer

The best index fossils are abu

Question 3

Explain how a supercontinent impacts global ocean currents and the Earth's carbon budget.

Accepted Answer

A single global ocean is creat

Question 4

Which is not a true statement?

Accepted Answer

A)  Relative dating is sufficient to reconstruct geologic events that occurred in many geologic applications 
B)  Geologists recognize that fossils provide an indicate of the age of a rock 
C)  Geologists learned that the age of fossils were not the same everywhere since organisms migrated to different places as environments changed 
D)  All of the above are true statements 
A)  Relative dating is sufficient to reconstruct geologic events that occurred in many geologic applications 
B)  Geologists recognize that fossils provide an indicate of the age of a rock 
C)  Geologists learned that the age of fossils were not the same everywhere since organisms migrated to different places as environments changed 
D)  All of the above are true statements

Question 5

Which of the following is not a true statement?

Accepted Answer

A)  Absolute age is measured in the order by which events occurred 
B)  Relative age is based on the principle that an event can only impact a rock if the rock existed first 
C)  Absolute age measurement of rocks have become common since the second half of the 20th century 
D)  Prior to the second half of the 20th century, scientists relied upon relative age of rocks to estimate how old a rock layer was 
A)  Absolute age is measured in the order by which events occurred 
B)  Relative age is based on the principle that an event can only impact a rock if the rock existed first 
C)  Absolute age measurement of rocks have become common since the second half of the 20th century 
D)  Prior to the second half of the 20th century, scientists relied upon relative age of rocks to estimate how old a rock layer was

Question 6

All atoms of any given element have the same number of protons in the nucleus, but what number may vary? ______________________

Accepted Answer

The answer of All atoms of any given element have...

Question 7

What is considered to be a useful tool for geologists to correlate the ages of sedimentary rocks? _________ ___________

Accepted Answer

The answer of What is considered to be a useful...

Question 8

Surface marine organisms that photosynthesize absorb atmospheric carbon dioxide, then they die and fall to the seafloor which removes carbon from the atmosphere.

Accepted Answer

A) True 
 B)False

Question 9

If you want to find fossils of humans or humanlike ancestors, you would need to look in rocks that are 7 million years old or less.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following is not a true statement about the Permian Mass Extinction Event?

Accepted Answer

A)  Approximately 90% of ocean species died out 
B)  Approximately 75% of reptile and amphibian species died out 
C)  Approximately 30% of insect species died out 
D)  The death of most life-forms at the end of the Permian opened new ecological opportunities in the biosphere 
A)  Approximately 90% of ocean species died out 
B)  Approximately 75% of reptile and amphibian species died out 
C)  Approximately 30% of insect species died out 
D)  The death of most life-forms at the end of the Permian opened new ecological opportunities in the biosphere

Question 11

In which specific Era of the Phanerozoic Eon, did shelly organisms first appear in the fossil record?   _________________________

Accepted Answer

The answer of In which specific Era of the Phanerozoic...

Question 12

Explain how absolute time is measured for geologic time.

Accepted Answer

Absolute time is measured in n

Question 13

Explain why carbon-14 is not a good unstable isotope choice to determine the age of a rock that contains dinosaur bones.

Accepted Answer

The half-life of carbon-14 is only 5730

Question 14

In which specific Era of the Phanerozoic Eon did most glacial deposits in the northern states get laid down?   _________________________

Accepted Answer

The answer of In which specific Era of the Phanerozoic...

Question 15

Which is not a true statement?

Accepted Answer

A)  The Precambrian Eon includes the Hadean, Archean and Proterozoic Eons and represent all geologic time before the Cambrian Period 
B)  The Precambrian Eon represents approximately 90% of all geologic time 
C)  The Precambrian Eon is a time when fossil remains were very abundant 
D)  The oldest division of the Precambrian is the Hadean Eon and the youngest division is the Proterozoic Eon 
A)  The Precambrian Eon includes the Hadean, Archean and Proterozoic Eons and represent all geologic time before the Cambrian Period 
B)  The Precambrian Eon represents approximately 90% of all geologic time 
C)  The Precambrian Eon is a time when fossil remains were very abundant 
D)  The oldest division of the Precambrian is the Hadean Eon and the youngest division is the Proterozoic Eon

Question 16

In which specific division of the Precambrian, did stromatolites (fossilized algal structures) first appear in the fossil record? _________________________

Accepted Answer

The answer of In which specific division of the Precambrian,...

Question 17

In which specific Era of the Phanerozoic Eon, did hominids first appear in the fossil record?   _________________________

Accepted Answer

The answer of In which specific Era of the Phanerozoic...

Question 18

If you find a Mesozoic-aged rock that contains dinosaurs or flower plants, the rock would have to between 253 million years old to 66 million years old.

Accepted Answer

A) True 
 B)False

Question 19

Explain why there are more unconformities on the continental margins as compared to the middle of the craton in Sloss Sequences.

Accepted Answer

The margins of the continent were submer

Question 20

Which of the following is not a true statement?

Accepted Answer

A)  If you visit the Grand Canyon and two consecutive layers are deposited without detectable interruption of geologic time, this would be a conformable contact 
B)  If you visit the Grand Canyon and two consecutive layers are deposited with detectable interruption of geologic time, this would be an unconformity 
C)  An unconformity is a bounding surface that represents a long interval of time for which no geologic record exists in that place 
D)  An unconformity can only represent billions of years of missing geologic time in the rock record 
A)  If you visit the Grand Canyon and two consecutive layers are deposited without detectable interruption of geologic time, this would be a conformable contact 
B)  If you visit the Grand Canyon and two consecutive layers are deposited with detectable interruption of geologic time, this would be an unconformity 
C)  An unconformity is a bounding surface that represents a long interval of time for which no geologic record exists in that place 
D)  An unconformity can only represent billions of years of missing geologic time in the rock record

Exam 4: Geologic Time: a Story in the Rocks

There is no single place on Earth where rocks were continuously preserved or formed.

Explain what the requirements to be considered an index fossil.

Explain how a supercontinent impacts global ocean currents and the Earth's carbon budget.

Which is not a true statement?

Which of the following is not a true statement?

All atoms of any given element have the same number of protons in the nucleus, but what number may vary? ______________________

What is considered to be a useful tool for geologists to correlate the ages of sedimentary rocks? _________ ___________

Surface marine organisms that photosynthesize absorb atmospheric carbon dioxide, then they die and fall to the seafloor which removes carbon from the atmosphere.

If you want to find fossils of humans or humanlike ancestors, you would need to look in rocks that are 7 million years old or less.

Which of the following is not a true statement about the Permian Mass Extinction Event?

In which specific Era of the Phanerozoic Eon, did shelly organisms first appear in the fossil record? _________________________

Explain how absolute time is measured for geologic time.

Explain why carbon-14 is not a good unstable isotope choice to determine the age of a rock that contains dinosaur bones.

In which specific Era of the Phanerozoic Eon did most glacial deposits in the northern states get laid down? _________________________

Which is not a true statement?

In which specific division of the Precambrian, did stromatolites (fossilized algal structures) first appear in the fossil record? _________________________

In which specific Era of the Phanerozoic Eon, did hominids first appear in the fossil record? _________________________

If you find a Mesozoic-aged rock that contains dinosaurs or flower plants, the rock would have to between 253 million years old to 66 million years old.

Explain why there are more unconformities on the continental margins as compared to the middle of the craton in Sloss Sequences.

Which of the following is not a true statement?

Earth Systems

Minerals

Rocks

Geologic Resources

The Active Earth: Plate Tectonics

Earthquakes and the Earths Structure

Volcanoes and Plutons

Mountains

Weathering, Soil, and Erosion

Fresh Water: Streams, Lakes, Ground Water, and Wetlands

Water Resources

Glaciers and Ice Ages

Deserts and Wind

Ocean Basins

Oceans and Coastlines

The Atmosphere

Energy Balance in the Atmosphere

Moisture, Clouds, and Weather

Climate

Climate Change

Motions in the Heavens

Planets and Their Moons

Stars, Space, and Galaxies

Filters

What is considered to be a useful tool for geologists to correlate the ages of sedimentary rocks? _ ___