2. How old is the sun, approximately?
5 million years old
10 million years old
5 billion years old
10 billion years old
13 billion years old

3. How old is the sun, approximately?
5 million years old
10 million years old
5 billion years old
10 billion years old
13 billion years old
Answer: C
Diff: 1
Bloom's Taxonomy: Knowledge
Global Sci Out: 7 Demonstrate the ability to make connections across geology
Section: 14.1 – Earth’s Place in Space
Earth Science LO: 2.5 – Studying other objects in the solar system helps us learn Earth’s history.

4. Scientists classify particles in the solar system by
By diameter and temperature
By speed of entry and mass
By diameter and speed of entry
By composition and diameter
By mass and composition

5. Scientists classify particles in the solar system by
By diameter and temperature
By speed of entry and mass
By diameter and speed of entry
By composition and diameter
By mass and composition
Answer: D
Diff: 2
Bloom's Taxonomy: Knowledge
Global Sci Out: 7 Demonstrate the ability to make connections across geology
Section: 14.1 – Earth’s Place in Space
Earth Science LO: 2.5 – Studying other objects in the solar system helps us learn Earth’s history.

7. The figure shows what type of particle from the solar system?
Asteroid
Comet
Meteorite
Meteor
Meteoroid

8. The figure shows what type of particle from the solar system?
Asteroid
Comet
Meteorite
Meteor
Meteoroid
Answer: B
Diff: 1
Bloom's Taxonomy: Knowledge
Global Sci Out: 7 Demonstrate the ability to make connections across geology
Section: 14.1 – Earth’s Place in Space
Earth Science LO: 2.5 – Studying other objects in the solar system helps us learn Earth’s history.

9. A particle from the solar system that strikes the Earth is called a
Asteroid
Comet
Meteorite
Meteor
Meteoroid

10. A particle from the solar system that strikes the Earth is called a
Asteroid
Comet
Meteorite
Meteor
Meteoroid
Answer: C
Diff: 2
Bloom's Taxonomy: Knowledge
Global Sci Out: 7 Demonstrate the ability to make connections across geology
Section: 14.2 – Airbursts and Impacts
Earth Science LO: 2.5 – Studying other objects in the solar system helps us learn Earth’s history.

11. What is the significance of the Tunguska River Valley in Siberia in terms of asteroids?
Site of enormous wildfires in prehistoric times caused by an asteroid.
Site of the largest impact crater ever recorded on Earth.
Largest meteorite was sighted.
Location of crater that marks the asteroid that killed the dinosaurs.
Large airburst of an asteroid occurred in recent history.

12. Site of enormous wildfires in prehistoric times caused by an asteroid.
What is the significance of the Tunguska River Valley in Siberia in terms of asteroids?
Site of enormous wildfires in prehistoric times caused by an asteroid.
Site of the largest impact crater ever recorded on Earth.
Largest meteorite was sighted.
Location of crater that marks the asteroid that killed the dinosaurs.
Large airburst of an asteroid occurred in recent history.
Answer: E
Diff: 3
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: Case Study 14.2 – The Tunguska Event
Earth Science LO: 8.4 – Hazardous events can be sudden or gradual.

13. The figure shows an example of what type of crater?
Rebound
Simple
This is not a crater
Complex impact
Soft impact

14. The figure shows an example of what type of crater?
Rebound
Simple
This is not a crater
Complex impact
Soft impact
Answer: D
Diff: 3
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.2 – Airbursts and Impacts
Earth Science LO: 3.3 – Earth exchanges mass and energy with the rest of the solar system.

15. Which is not a reason craters are more common on the moon than the Earth?
Ocean impact sites have been buried by marine sediment.
Very few meteoroids enter Earth’s atmosphere.
Ocean impact sites have been destroyed by plate tectonic processes.
Land impact craters have eroded.
Smaller meteoroids tend to disintegrate in Earth’s atmosphere.

16. Ocean impact sites have been buried by marine sediment.
Which is not a reason craters are more common on the moon than the Earth?
Ocean impact sites have been buried by marine sediment.
Very few meteoroids enter Earth’s atmosphere.
Ocean impact sites have been destroyed by plate tectonic processes.
Land impact craters have eroded.
Smaller meteoroids tend to disintegrate in Earth’s atmosphere.
Answer: B
Diff: 4
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.2 – Airbursts and Impacts
Earth Science LO: 3.3 – Earth exchanges mass and energy with the rest of the solar system.

17. Which concept is now used to explain the processes that form the Earth’s landscapes?
Punctuated uniformitarianism
Catastrophism
Uniformitarianism
None of these are used
Gradualism

18. Punctuated uniformitarianism Catastrophism Uniformitarianism
Which concept is now used to explain the processes that form the Earth’s landscapes?
Punctuated uniformitarianism
Catastrophism
Uniformitarianism
None of these are used
Gradualism
Answer: A
Diff: 3
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.2 – Airbursts and Impacts
Earth Science LO: 2.7 – Over Earth’s vast history, both gradual and catastrophic processes have produced enormous changes.

19. How is mass extinction characterized?
All of these are characteristics
If there are any survivors
How large the volcanic eruption is
How much the climate changes within a period
Sudden loss of large numbers of plants and animals relative to the number of new species being added

20. How is mass extinction characterized?
All of these are characteristics
If there are any survivors
How large the volcanic eruption is
How much the climate changes within a period
Sudden loss of large numbers of plants and animals relative to the number of new species being added
Answer: E
Diff: 2
Bloom's Taxonomy: Knowledge
Global Sci Out: 7 Demonstrate the ability to make connections across geology
Section: 14.3 – Mass Extinctions
Earth Science LO: 6.6 – Mass extinctions occur when global conditions change faster than species in large numbers can adapt.

21. Which has not been a cause of mass extinction?
Movement of tectonic plates
Asteroid impact
Large basaltic eruption
Flooding from tsunami
Volcanic activity

22. Which has not been a cause of mass extinction?
Movement of tectonic plates
Asteroid impact
Large basaltic eruption
Flooding from tsunami
Volcanic activity
Answer: D
Diff: 3
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.3 – Mass Extinctions
Earth Science LO: 6.6 – Mass extinctions occur when global conditions change faster than species in large numbers can adapt.

23. Which of the following was not a result of the K-Pg Boundary mass extinction?
About 70 percent of all land and marine genera died off
Set the stage for the evolution of mammals
Widespread wildfires were experienced everywhere
Demise of swimming reptiles
Demise of large dinosaurs on land

24. About 70 percent of all land and marine genera died off
Which of the following was not a result of the K-Pg Boundary mass extinction?
About 70 percent of all land and marine genera died off
Set the stage for the evolution of mammals
Widespread wildfires were experienced everywhere
Demise of swimming reptiles
Demise of large dinosaurs on land
Answer: C
Diff: 4
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: Case Study 14.3 – K-Pg Boundary Mass Extinction
Earth Science LO: 6.6 – Mass extinctions occur when global conditions change faster than species in large numbers can adapt.

25. The impact or airburst of an asteroid or comet is not a direct cause of
tsunamis.
mass wasting.
wildfires.
climate change.
flooding.

26. The impact or airburst of an asteroid or comet is not a direct cause of
tsunamis.
mass wasting.
wildfires.
climate change.
flooding.
Answer: E
Diff: 3
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.4 – Linkages with Other Natural Hazards
Earth Science LO: 8.1 – Natural hazards result from natural Earth processes.

27. Which has the most influence on the consequences of an airburst or direct impact?
Population of the site of airburst or impact
Size of the extraterrestrial object
Probability that it will occur
Time between impacts or airbursts
None of these influence the consequences

28. Population of the site of airburst or impact
Which has the most influence on the consequences of an airburst or direct impact?
Population of the site of airburst or impact
Size of the extraterrestrial object
Probability that it will occur
Time between impacts or airbursts
None of these influence the consequences
Answer: A
Diff: 4
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.5 – Minimizing the Impact Hazard
Earth Science LO: 8.5 – Natural hazards can be local or global in origin.

29. What have scientists been doing to minimize the impact hazard?
Developing weapons to destroy an extraterrestrial object larger than 1 km (~3300 ft) in diameter.
Building bunkers to hold everyone in case of a large impact.
They have been working on all of these.
Identifying and categorizing nearby objects that may threaten Earth.
Working to break up all extraterrestrial objects that are within a certain distance from Earth.

30. What have scientists been doing to minimize the impact hazard?
Developing weapons to destroy an extraterrestrial object larger than 1 km (~3300 ft) in diameter.
Building bunkers to hold everyone in case of a large impact.
They have been working on all of these.
Identifying and categorizing nearby objects that may threaten Earth.
Working to break up all extraterrestrial objects that are within a certain distance from Earth.
Answer: D
Diff: 4
Bloom's Taxonomy: Comprehension
Global Sci Out: 2 Demonstrate the ability to think critically and employ critical thinking skills
Section: 14.5 – Minimizing the Impact Hazard
Earth Science LO: 8.6 – Earth scientists are continually improving estimates of when and where natural hazards occur.