Question 1

What is a characteristic of all terrestrial planets?

Accepted Answer

A)  They all have water. 
B)  They all have a rocky surface. 
C)  They all have a thick atmosphere. 
D)  They all have weather patterns. 
E)  They all have a very geologically active surface. 
A)  They all have water. 
B)  They all have a rocky surface. 
C)  They all have a thick atmosphere. 
D)  They all have weather patterns. 
E)  They all have a very geologically active surface. B

Question 2

_______________ produces the majority of the geological activity on Earth.

Accepted Answer

Plate tectonics

Question 3

Human output of CO2 is minor in comparison to the CO2 output of volcanoes.

Accepted Answer

A) True 
 B)False  False

Question 4

What are the four stages of Terrestrial planet development?

Accepted Answer

Differentiation produced a dense core, t

Question 5

A major process in modifying Earth's crust is erosion by wind.

Accepted Answer

A) True 
 B)False

Question 6

Why can't S waves travel through Earth's liquid core?

Accepted Answer

A)  Earth's liquid core is creating its own S waves. 
B)  Earth's liquid core causes the seismic activity to be reflected back to its origin. 
C)  Earth's liquid core absorbs the waves. 
D)  Earth's liquid core is too hot and changes the wavelength of the S wave. 
E)  Earth's liquid core does not have the rigidity required for shear waves to travel along. 
A)  Earth's liquid core is creating its own S waves. 
B)  Earth's liquid core causes the seismic activity to be reflected back to its origin. 
C)  Earth's liquid core absorbs the waves. 
D)  Earth's liquid core is too hot and changes the wavelength of the S wave. 
E)  Earth's liquid core does not have the rigidity required for shear waves to travel along.

Question 7

What is the first stage of planetary development?

Accepted Answer

A)  cratering 
B)  flooding 
C)  bombardment 
D)  differentiation 
E)  slow surface evolution 
A)  cratering 
B)  flooding 
C)  bombardment 
D)  differentiation 
E)  slow surface evolution

Question 8

Some of Earth's rocks retain traces of the magnetic field that point backward to its field today.

Accepted Answer

A) True 
 B)False

Question 9

Because P waves are_______________ waves, they can move through a liquid.

Accepted Answer

compressio

Question 10

Based purely on its size, which of these planetary bodies is least geologically active?

Accepted Answer

A)  Mercury 
B)  Venus 
C)  Earth 
D)  Mars 
E)  Io 
A)  Mercury 
B)  Venus 
C)  Earth 
D)  Mars 
E)  Io

Question 11

Describe each differentiated layers of Earth.

Accepted Answer

crust, mantle, core (outer and inner )
T

Question 12

List some of the geological forces and end products of plate tectonics.

Accepted Answer

rift valleys 
midocean rises

Question 13

Explain why it is a common misconception to believe that life on Earth exists because of the presence of oxygen.

Accepted Answer

There is oxygen in Earth's atmosphere be

Question 14

There is oxygen in Earth's atmosphere because of plant life.

Accepted Answer

A) True 
 B)False

Question 15

Explain how solar wind interacts with Earth's magnetic field to create auroras at the poles. Make sure to include each part of the magnetic field the solar particles interact with.

Accepted Answer

Earth's magnetic field dominates space a

Question 16

Apart from carbon dioxide, which is the most abundant greenhouse gas in Earth's atmosphere?

Accepted Answer

A)  water vapor 
B)  helium 
C)  ammonia 
D)  methane 
E)  nitrous oxide 
A)  water vapor 
B)  helium 
C)  ammonia 
D)  methane 
E)  nitrous oxide

Question 17

What process in Earth's core is important in the generation of Earth's magnetic field?

Accepted Answer

A)  accretion 
B)  differentiation 
C)  convection 
D)  eruption 
E)  gravitation 
A)  accretion 
B)  differentiation 
C)  convection 
D)  eruption 
E)  gravitation

Question 18

Astronomers believe that some of the abundant water on Earth arrived late in the formation process as a bombardment of _______________.

Accepted Answer

comets,icy

Question 19

Most of Earth's history has been destroyed by an active crust and erosion.

Accepted Answer

A) True 
 B)False

Question 20

How have scientists been able to determine that Earth has a liquid metal outer core?

Accepted Answer

Geoscientists can use the arrival times

Exam 20: Earth the Active Planet

What is a characteristic of all terrestrial planets?

_______________ produces the majority of the geological activity on Earth.

Human output of CO2 is minor in comparison to the CO2 output of volcanoes.

What are the four stages of Terrestrial planet development?

A major process in modifying Earth's crust is erosion by wind.

Why can't S waves travel through Earth's liquid core?

What is the first stage of planetary development?

Some of Earth's rocks retain traces of the magnetic field that point backward to its field today.

Because P waves are_______________ waves, they can move through a liquid.

Based purely on its size, which of these planetary bodies is least geologically active?

Describe each differentiated layers of Earth.

List some of the geological forces and end products of plate tectonics.

Explain why it is a common misconception to believe that life on Earth exists because of the presence of oxygen.

There is oxygen in Earth's atmosphere because of plant life.

Explain how solar wind interacts with Earth's magnetic field to create auroras at the poles. Make sure to include each part of the magnetic field the solar particles interact with.

Apart from carbon dioxide, which is the most abundant greenhouse gas in Earth's atmosphere?

What process in Earth's core is important in the generation of Earth's magnetic field?

Astronomers believe that some of the abundant water on Earth arrived late in the formation process as a bombardment of _______________.

Most of Earth's history has been destroyed by an active crust and erosion.

How have scientists been able to determine that Earth has a liquid metal outer core?

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Origins of Modern Astronomy

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Human output of CO₂ is minor in comparison to the CO₂ output of volcanoes.