Question 1

A large asteroid impact would probably cause a mass extinction, but an airburst might be more of a worry for people. Why?

Accepted Answer

A large asteroid impact probably has ret...

Question 2

When was the greatest mass extinction in Earth's history?

Accepted Answer

The largest recorded mass extinction occ...

Question 3

Which of the following describes a asteroid?

Accepted Answer

A)   Large diameter (10m-1000km)  object originating from belt between Jupiter and Mars
B)   Small diameter (
C)   Variable-sized object that intersects the Earth's surface
D)   Icy object that appears to have a tail as it burns, originates from outside our solar system

Question 4

Meteorites are just asteroids or meteors that make impact with the Earth's surface.

Accepted Answer

A) True 
 B)False

Question 5

The asteroid impact found at the Yucatan peninsula was probably big enough to cause wildfires across most of the globe.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following statements is NOT a reason why meteorite impact craters are much more common on the Moon than on the Earth?

Accepted Answer

A)   Many impact craters on the Earth are buried by sediment over geologic time and so we don't see them.
B)   Many impact craters on the Earth are destroyed by plate tectonic processes.
C)   Smaller meteoroids and comets tend to burn up and disintegrate in the Earth's atmosphere before striking its surface.
D)   The Earth's crust is very strong and so it is difficult for meteorite impact craters to form there.

Question 7

The Tunguska Event in Siberia produced one of the largest and best preserved impact craters on the Earth.

Accepted Answer

A) True 
 B)False

Question 8

The solar system that we live in started as a spinning "pancake" of matter.

Accepted Answer

A) True 
 B)False

Question 9

In terms of avoiding an impact from an asteroid, what do you think is the best solution? Why?

Accepted Answer

If a large NEO is recognized t...

Question 10

About how many major Mass Extinctions have there been in the Earth's history?

Accepted Answer

A)   One, just the dinosaurs
B)   About 6
C)   About 50
D)   About 100
E)   About 1000

Question 11

Which of the following describes a meteoroid?

Accepted Answer

A)   Large diameter (10m-1000km)  object originating from belt between Jupiter and Mars
B)   Moderate diameter (
C)   Small diameter (
D)   Variable-sized object that intersects the Earth's surface
E)   Icy object that appears to have a tail as it burns, originates from outside our solar system

Question 12

Airbursts are not really dangerous to life on the Earth's surface because they explode so high in the atmosphere.

Accepted Answer

A) True 
 B)False

Question 13

Impact craters on the Earth can get erased over geologic time by plate tectonic processes and erosion.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following natural disasters was NOT caused by the asteroid impact at the K-Pg boundary?

Accepted Answer

A)   Tsunamis
B)   Volcanoes
C)   Earthquakes
D)   Wildfires
E)   Acid Rain

Question 15

Impact craters are much more common on the Moon than here on Earth.

Accepted Answer

A) True 
 B)False

Question 16

Complex impact craters are larger than simple impact craters.

Accepted Answer

A) True 
 B)False

Question 17

Mass extinctions are usually caused by some kind of rapid climate change.

Accepted Answer

A) True 
 B)False

Question 18

Asteroid impacts are rare and therefore our risk of death from them is essentially zero.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following hazards is NOT linked to an asteroid impact?

Accepted Answer

A)   Volcanoes
B)   Hurricanes
C)   Tsunami
D)   Landslides
E)   Earthquakes

Question 20

The Chelyabinsk Meteor in 2013 in Russia caused over 300 deaths, making it the deadliest airburst ever.

Accepted Answer

A) True 
 B)False

Exam 14: Impacts and Extinctions

Which of the following describes a meteoroid?

Correct AnswerverifiedShow Answer

The Tunguska Event in Siberia produced one of the largest and best preserved impact craters on the Earth.

Correct AnswerverifiedShow Answer

Mass extinctions are usually caused by some kind of rapid climate change.

Correct AnswerverifiedShow Answer

Asteroid impacts are rare and therefore our risk of death from them is essentially zero.

Correct AnswerverifiedShow Answer

Which of the following statements is NOT a reason why meteorite impact craters are much more common on the Moon than on the Earth?

Correct AnswerverifiedShow Answer

In terms of avoiding an impact from an asteroid, what do you think is the best solution? Why?

Correct AnswerverifiedIf a large NEO is recognized t...View AnswerShow Answer

The asteroid impact found at the Yucatan peninsula was probably big enough to cause wildfires across most of the globe.

Correct AnswerverifiedShow Answer

About how many major Mass Extinctions have there been in the Earth's history?

Correct AnswerverifiedShow Answer

The Chelyabinsk Meteor in 2013 in Russia caused over 300 deaths, making it the deadliest airburst ever.

Correct AnswerverifiedShow Answer

Which of the following hazards is NOT linked to an asteroid impact?

Correct AnswerverifiedShow Answer

Impact craters are much more common on the Moon than here on Earth.

Correct AnswerverifiedShow Answer

Complex impact craters are larger than simple impact craters.

Correct AnswerverifiedShow Answer

Which of the following describes a asteroid?

Correct AnswerverifiedShow Answer

Which of the following natural disasters was NOT caused by the asteroid impact at the K-Pg boundary?

Correct AnswerverifiedShow Answer

A large asteroid impact would probably cause a mass extinction, but an airburst might be more of a worry for people. Why?

Correct AnswerverifiedA large asteroid impact probably has ret...View AnswerShow Answer

Impact craters on the Earth can get erased over geologic time by plate tectonic processes and erosion.

Correct AnswerverifiedShow Answer

Meteorites are just asteroids or meteors that make impact with the Earth's surface.

Correct AnswerverifiedShow Answer

Airbursts are not really dangerous to life on the Earth's surface because they explode so high in the atmosphere.

Correct AnswerverifiedShow Answer

When was the greatest mass extinction in Earth's history?

Correct AnswerverifiedThe largest recorded mass extinction occ...View AnswerShow Answer

The solar system that we live in started as a spinning "pancake" of matter.

Correct AnswerverifiedShow Answer

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If a large NEO is recognized t...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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A large asteroid impact probably has ret...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
verified
The largest recorded mass extinction occ...
View Answer

Correct Answer
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