Question 1

How might liquid water exist on Mars where the temperature is routinely below the freezing point of water?

Accepted Answer

A)  Martian water may contain salts, which lowers the freezing temperature of the water. 
B)  Ice is melted by the heat of geological activity. 
C)  Liquid water emerges from martian volcanoes. 
D)  Water precipitates from the martian atmosphere. 
A)  Martian water may contain salts, which lowers the freezing temperature of the water. 
B)  Ice is melted by the heat of geological activity. 
C)  Liquid water emerges from martian volcanoes. 
D)  Water precipitates from the martian atmosphere.

Question 2

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 past 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 past 4.5 billion years. 
D)  occurred at approximately a constant rate throughout most of the age of the Solar System.

Question 3

Roughly how often does a high tide occur?

Accepted Answer

A)  once every 6 hours 
B)  once every 12 hours 
C)  once every 18 hours 
D)  once every 24 hours 
A)  once every 6 hours 
B)  once every 12 hours 
C)  once every 18 hours 
D)  once every 24 hours

Question 4

Why are impact craters rare on the surface of Earth but plentiful on the Moon?

Accepted Answer

Impact craters on the Moon hav

Question 5

The fact that Earth's interior is differentiated suggests that:

Accepted Answer

A)  it formed first from denser material and then afterward accreted lighter material. 
B)  it has both a liquid and solid core. 
C)  it was liquid at some point in the past. 
D)  only the crust is solid; the rest of Earth's interior is liquid. 
A)  it formed first from denser material and then afterward accreted lighter material. 
B)  it has both a liquid and solid core. 
C)  it was liquid at some point in the past. 
D)  only the crust is solid; the rest of Earth's interior is liquid.

Question 6

What causes the tides on Earth,and how frequently do high and low tides occur?

Accepted Answer

Tides are caused predominantly by the ti

Question 7

What are the four main processes that shape the surfaces of the terrestrial planets?

Accepted Answer

Impact cratering,tec

Question 8

The North American Plate and the Pacific Plate are sliding past one another at a rate of approximately 3 cm/year.San Francisco,which is located on the edge of the North American Plate,is sliding southward toward Los Angeles,which is located on the Pacific Plate.If they are currently separated by a distance of 600 km,how many years will it take for the two cities to meet?

Accepted Answer

A)  3 million years 
B)  300,000 years 
C)  20 million years 
D)  20,000 years 
A)  3 million years 
B)  300,000 years 
C)  20 million years 
D)  20,000 years

Question 9

How can a planet or moon that is inactive geologically have incidents of volcanism?

Accepted Answer

Impacts may generate

Question 10

What is the evidence for Earth's interior being composed of regions of different density?

Accepted Answer

A)  continental drift 
B)  subduction 
C)  differences in the propagation of seismic waves 
A)  continental drift 
B)  subduction 
C)  differences in the propagation of seismic waves

Question 11

Mars,Venus,and Earth are much less heavily cratered than Mercury and the Moon.This is explained by the fact that:

Accepted Answer

A)  the rate of cratering in the early Solar System was strongly dependent on location. 
B)  all three have thick, protective atmospheres. 
C)  Earth and Venus were shielded from impacts by the Moon, and Mars was protected by the asteroid belt. 
D)  Mars, Venus, and Earth were geologically active longer than Mercury and the Moon. 
A)  the rate of cratering in the early Solar System was strongly dependent on location. 
B)  all three have thick, protective atmospheres. 
C)  Earth and Venus were shielded from impacts by the Moon, and Mars was protected by the asteroid belt. 
D)  Mars, Venus, and Earth were geologically active longer than Mercury and the Moon.

Question 12

What type of wave is depicted in the figure below?

Accepted Answer

A)  longitudinal 
B)  transverse 
A)  longitudinal 
B)  transverse

Question 13

The source or sources of internal heat of the Earth are:

Accepted Answer

A)  tidal stress. 
B)  radioactive decay. 
C)  leftover heat of planetary formation. 
D)  All of the above. 
A)  tidal stress. 
B)  radioactive decay. 
C)  leftover heat of planetary formation. 
D)  All of the above.

How might liquid water exist on Mars where the temperature is routinely below the freezing point of water?

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:

Roughly how often does a high tide occur?

Why are impact craters rare on the surface of Earth but plentiful on the Moon?

The fact that Earth's interior is differentiated suggests that:

What causes the tides on Earth,and how frequently do high and low tides occur?

What are the four main processes that shape the surfaces of the terrestrial planets?

How can a planet or moon that is inactive geologically have incidents of volcanism?

What is the evidence for Earth's interior being composed of regions of different density?

Mars,Venus,and Earth are much less heavily cratered than Mercury and the Moon.This is explained by the fact that:

What type of wave is depicted in the figure below?

The source or sources of internal heat of the Earth are:

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

Laws of Motion

Light and Telescopes

The Formation of Stars and Planets

Atmospheres of Venus, earth, and Mars

The Giant Planets

Small Bodies of the Solar System

Measuring the Stars

Our Star: the Sun

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Measuring Galaxies

Our Galaxy: the Milky Way

The Evolution of the Universe

Formation of Structure

Life in the Universe

Filters

Exam 6: Terrestrial Worlds in the Inner Solar System

How might liquid water exist on Mars where the temperature is routinely below the freezing point of water?

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:

Roughly how often does a high tide occur?

Why are impact craters rare on the surface of Earth but plentiful on the Moon?

The fact that Earth's interior is differentiated suggests that:

What causes the tides on Earth,and how frequently do high and low tides occur?

What are the four main processes that shape the surfaces of the terrestrial planets?

How can a planet or moon that is inactive geologically have incidents of volcanism?

What is the evidence for Earth's interior being composed of regions of different density?

Mars,Venus,and Earth are much less heavily cratered than Mercury and the Moon.This is explained by the fact that:

What type of wave is depicted in the figure below?

The source or sources of internal heat of the Earth are:

Thinking Like an Astronomer

Patterns in the Skymotions of Earth and the Moon

Laws of Motion

Light and Telescopes

The Formation of Stars and Planets

Atmospheres of Venus, earth, and Mars

The Giant Planets

Small Bodies of the Solar System

Measuring the Stars

Our Star: the Sun

Evolution of Low-Mass Stars

Evolution of High-Mass Stars

Measuring Galaxies

Our Galaxy: the Milky Way

The Evolution of the Universe

Formation of Structure

Life in the Universe

Filters