Question 1

The smallest craters are found on

Accepted Answer

A)  Earth. 
B)  Mars. 
C)  Venus. 
D)  the Moon. 
A)  Earth. 
B)  Mars. 
C)  Venus. 
D)  the Moon.

Question 2

Describe one form of tectonic disruption on Mercury,Venus,and Mars,respectively,and how they formed.

Accepted Answer

Mercury has evidence of faults due to th

Question 3

The lithosphere of a planet is

Accepted Answer

A)  the molten layer under the crust. 
B)  the layer of the atmosphere in which clouds form. 
C)  the upper layer of its atmosphere. 
D)  its solid surface. 
A)  the molten layer under the crust. 
B)  the layer of the atmosphere in which clouds form. 
C)  the upper layer of its atmosphere. 
D)  its solid surface.

Question 4

Which of the following does NOT contribute to the large size of Mars' volcanoes?

Accepted Answer

A)  Absence of plate tectonics 
B)  Lack of atmosphere 
C)  Lower gravity (compared to Earth) 
D)  This is a trick question.None of these factors contributes to the formation of large volcanoes. 
A)  Absence of plate tectonics 
B)  Lack of atmosphere 
C)  Lower gravity (compared to Earth) 
D)  This is a trick question.None of these factors contributes to the formation of large volcanoes.

Question 5

Erosion on the surface of the Moon is primarily caused by

Accepted Answer

A)  flowing water. 
B)  wind. 
C)  solar radiation. 
D)  dust storms. 
A)  flowing water. 
B)  wind. 
C)  solar radiation. 
D)  dust storms.

Question 6

Which object would have the largest impact if it were to strike the Earth?

Accepted Answer

A)  a 10-kg rock moving at 100 m/s 
B)  a 100-kg rock moving at 100 m/s 
C)  a 100-kg asteroid rock moving at 1 m/s 
D)  a 1,000-kg asteroid moving at 10 m/s 
A)  a 10-kg rock moving at 100 m/s 
B)  a 100-kg rock moving at 100 m/s 
C)  a 100-kg asteroid rock moving at 1 m/s 
D)  a 1,000-kg asteroid moving at 10 m/s

Question 7

Based on the assumption that a liquid,conducting core and rapid rotation are both required for a magnetic dynamo to operate,which terrestrial planets would you expect to have magnetic fields?

Accepted Answer

A)  Earth only 
B)  Earth,Venus,and Mars only 
C)  Earth and Mars only 
D)  Earth and Mercury only 
A)  Earth only 
B)  Earth,Venus,and Mars only 
C)  Earth and Mars only 
D)  Earth and Mercury only

Question 8

Mars has many large shield volcanoes probably because its core is colder than the Earth's core.

Accepted Answer

A) True 
 B)False

Question 9

Based on the age of the light- and dark-colored regions of the Moon and the number of craters observed in these regions,we know that impacts in the inner Solar System

Accepted Answer

A)  rapidly decreased approximately 3 billion years ago. 
B)  rapidly decreased approximately 1 billion years ago. 
C)  were very rare in the last 4.5 billion years. 
D)  occurred at approximately a constant rate throughout most of the age of the Solar System. 
A)  rapidly decreased approximately 3 billion years ago. 
B)  rapidly decreased approximately 1 billion years ago. 
C)  were very rare in the last 4.5 billion years. 
D)  occurred at approximately a constant rate throughout most of the age of the Solar System.

Question 10

The center of Earth is hotter than the surface of the Sun.

Accepted Answer

A) True 
 B)False

Question 11

Suppose you had samples of the same kind of rock from two planets that were completely identical except that the interior of one was chemically differentiated and the interior of the other was not.How would you expect the samples to differ from each other?

Accepted Answer

The differentiated sample woul

Question 12

Which of the following are sites of volcanic activity on Earth?

Accepted Answer

A)  Local hot spots 
B)  Spreading centers 
C)  Subduction zones 
D)  All of the above 
A)  Local hot spots 
B)  Spreading centers 
C)  Subduction zones 
D)  All of the above

Question 13

The dynamo theory says that a planet will have a strong magnetic field if it has

Accepted Answer

A)  fast rotation and a solid core. 
B)  slow rotation and a liquid core. 
C)  fast rotation and a liquid core. 
D)  slow rotation and a solid core. 
A)  fast rotation and a solid core. 
B)  slow rotation and a liquid core. 
C)  fast rotation and a liquid core. 
D)  slow rotation and a solid core.

Question 14

What is the best explanation for the heating of Earth's interior today?

Accepted Answer

A)  The tidal effects of the moon 
B)  Seismic waves that traverse Earth's core 
C)  Decay of radioactive elements 
D)  Convective motions in the mantle 
A)  The tidal effects of the moon 
B)  Seismic waves that traverse Earth's core 
C)  Decay of radioactive elements 
D)  Convective motions in the mantle

Question 15

Describe two reasons why Earth's magnetic field cannot be a result of permanent magnetism.

Accepted Answer

First,the interior temperature is too hi

Question 16

The asteroid or comet that impacted Earth and either caused or hastened the extinction of 70 percent of all living species on Earth happened approximately 650 thousand years ago.

Accepted Answer

A) True 
 B)False

Question 17

Convection cannot take place in the Earth's mantle because it is not molten.

Accepted Answer

A) True 
 B)False

Question 18

If the Himalaya mountain range is presently 8,000 m in height and is rising at a rate of 0.5 m per century because of the convergence of two continental plates,how long did it take to create this mountain range?

Accepted Answer

A)  1,600 years 
B)  160,000 years 
C)  1.6 million years 
D)  160 million years 
A)  1,600 years 
B)  160,000 years 
C)  1.6 million years 
D)  160 million years

Question 19

We suspect that Mars once had liquid water on its surface because

Accepted Answer

A)  mapping satellites have detected dry river beds. 
B)  rovers have detected minerals that must have formed in the presence of liquid water. 
C)  mapping satellites have detected outflow channels coming from impact craters. 
D)  All of the above 
A)  mapping satellites have detected dry river beds. 
B)  rovers have detected minerals that must have formed in the presence of liquid water. 
C)  mapping satellites have detected outflow channels coming from impact craters. 
D)  All of the above

Question 20

The smoother,less cratered surfaces of the Moon resulted from those areas being protected by the Moon's proximity to Earth.

Accepted Answer

A) True 
 B)False

Exam 7: The Terrestrial Planets and Earths Moon

The smallest craters are found on

Describe one form of tectonic disruption on Mercury,Venus,and Mars,respectively,and how they formed.

The lithosphere of a planet is

Which of the following does NOT contribute to the large size of Mars' volcanoes?

Erosion on the surface of the Moon is primarily caused by

Which object would have the largest impact if it were to strike the Earth?

Based on the assumption that a liquid,conducting core and rapid rotation are both required for a magnetic dynamo to operate,which terrestrial planets would you expect to have magnetic fields?

Mars has many large shield volcanoes probably because its core is colder than the Earth's core.

Based on the age of the light- and dark-colored regions of the Moon and the number of craters observed in these regions,we know that impacts in the inner Solar System

The center of Earth is hotter than the surface of the Sun.

Suppose you had samples of the same kind of rock from two planets that were completely identical except that the interior of one was chemically differentiated and the interior of the other was not.How would you expect the samples to differ from each other?

Which of the following are sites of volcanic activity on Earth?

The dynamo theory says that a planet will have a strong magnetic field if it has

What is the best explanation for the heating of Earth's interior today?

Describe two reasons why Earth's magnetic field cannot be a result of permanent magnetism.

The asteroid or comet that impacted Earth and either caused or hastened the extinction of 70 percent of all living species on Earth happened approximately 650 thousand years ago.

Convection cannot take place in the Earth's mantle because it is not molten.

If the Himalaya mountain range is presently 8,000 m in height and is rising at a rate of 0.5 m per century because of the convergence of two continental plates,how long did it take to create this mountain range?

We suspect that Mars once had liquid water on its surface because

The smoother,less cratered surfaces of the Moon resulted from those areas being protected by the Moon's proximity to Earth.

Why Learn Astronomy

Patterns in the Skymotions of Earth

Gravity and Orbitsa Celestial Ballet

Light

The Tools of the Astronomer

The Birth and Evolution of Planetary Systems

Atmospheres of the Terrestrial Planets

Worlds of Gas and Liquidthe Giant Planets

Gravity Is More Than Keplers Laws

Planetary Adornmentsmoons and Rings

Dwarf Planets and Small Solar System Bodies

Taking the Measure of Stars

A Run-Of-The-Mill G-Type Starour Sun

Star Formation and the Interstellar Medium

Stars in the Slow Lanelow-Mass Stellar Evolution

Live Fast,die Younghigh-Mass Stellar Evolution

Our Expanding Universe

Galaxies

The Milky Waya Normal Spiral Galaxy

Modern Cosmology

The Origin of Structure

Life

Filters