Question 1

The chief erosive agent now on the Moon is

Accepted Answer

A)   lunar ice melting and refreezing in the polar regions.
B)   lava flows welling up in the mare.
C)   volcanic vents in the rugged highlands.
D)   the rain of micrometeorites chewing up the regolith.
E)   rain from cometary debris melting as it enters the Moon's atmosphere.F) B) and C)
G) B) and E)

Question 2

Each day, there are ________ high tides on Earth.

Accepted Answer

The answer of Each day, there are ________ high tides...

Question 3

When tectonic plates collide, they fuse together and come to rest.

Accepted Answer

A) True 
 B)False

Question 4

When the Moon is described as tidally locked, that means that it does not rotate.

Accepted Answer

A) True 
 B)False

Question 5

The average rate of erosion on the Moon is far less than on Earth because

Accepted Answer

A)   the crust of the Moon is much denser than the Earth's crust.
B)   the Moon is much younger than the Earth.
C)   the Moon lacks wind, water and an atmosphere.
D)   the Moon's magnetic field protects it from the solar wind better than ours does.
E)   the Moon's mare long ago dried up, so there is no more wave erosion there.F) C) and E)
G) A) and B)

Question 6

The crust of the Earth is covered by about ________ water in the hydrosphere.

Accepted Answer

A)   50%
B)   60%
C)   70%
D)   80%
E)   90%F) A) and D)
G) D) and E)

Question 7

When two tectonic plates collide

Accepted Answer

A)   they both stop moving.
B)   they always produce high mountain chains like the Himalayas.
C)   volcanoes always mark the boundary between them.
D)   they continue moving, producing a variety of large deformations.
E)   that region is safe from earthquakes now the plates are fixed.F) C) and D)
G) A) and B)

Question 8

Infrared radiation is trapped close to our surface by the greenhouse effect.

Accepted Answer

A) True 
 B)False

Question 9

Almost all of our atmospheric gases lie in the

Accepted Answer

A)   ionosphere.
B)   stratosphere.
C)   troposphere.
D)   ozone layer.
E)   mesosphere.F) B) and E)
G) C) and E)

Question 10

What were the two primary courses of heating that let the Earth differentiate? Which is more important to us today?

Accepted Answer

Impacts of asteroids and radio...

Question 11

Which of these is not a product of plate tectonics and hot spots?

Accepted Answer

A)   Hawaii
B)   Yellowstone and Old Faithful
C)   The Mid Atlantic Rift
D)   The Andes
E)   The Grand Canyon's eroded depthsF) C) and E)
G) A) and E)

Question 12

The various layers of the atmosphere are distinguished by the behavior of the ________.

Accepted Answer

The answer of The various layers of the atmosphere are...

Question 13

Without greenhouse gases in our atmosphere, the Earth's oceans would not be liquid.

Accepted Answer

A) True 
 B)False

Question 14

Describe the two different kinds of seismic waves. Distinguish between them by describing how they move through Earth's interior.

Accepted Answer

S-waves cause side-to-side motion. These...

Question 15

What gas is the primary constituent of our atmosphere?

Accepted Answer

A)   Oxygen
B)   Carbon dioxide
C)   Nitrogen
D)   Hydrogen
E)   HeliumF) A) and B)
G) B) and E)

Question 16

Explain how crater counts allow us to estimate the ages of surfaces throughout the solar system.

Accepted Answer

Craters are the rule...everybody was a t

Question 17

In the past, most of the landmass on Earth was concentrated in a single, large continent.

Accepted Answer

A) True 
 B)False

Question 18

The presence of a magnetic field is a good indication that

Accepted Answer

A)   the Earth's interior is similar to Mercury's, as both have fields.
B)   a huge iron meteorite lies somewhere high up in the mantle, not in the core.
C)   we have a liquid metal outer core, spinning rapidly as we rotate.
D)   the Earth's interior must be completely molten to the center.
E)   the Earth's interior has had time to solidify, with a rigid bar magnet created.F) None of the above
G) A) and B)

Question 19

Explain what causes high tides on Earth.

Accepted Answer

The Moon is closest to the side facing i...

Question 20

The most abundant gas in Earth's atmosphere is oxygen.

Accepted Answer

A) True 
 B)False

Exam 4: Earth and Its Moon

The various layers of the atmosphere are distinguished by the behavior of the ________.

Correct AnswerverifiedShow Answer

Without greenhouse gases in our atmosphere, the Earth's oceans would not be liquid.

Correct AnswerverifiedShow Answer

In the past, most of the landmass on Earth was concentrated in a single, large continent.

Correct AnswerverifiedShow Answer

Describe the two different kinds of seismic waves. Distinguish between them by describing how they move through Earth's interior.

Correct AnswerverifiedS-waves cause side-to-side motion. These...View AnswerShow Answer

The presence of a magnetic field is a good indication that

Correct AnswerverifiedShow Answer

The crust of the Earth is covered by about ________ water in the hydrosphere.

Correct AnswerverifiedShow Answer

When two tectonic plates collide

Correct AnswerverifiedShow Answer

Explain how crater counts allow us to estimate the ages of surfaces throughout the solar system.

Correct AnswerverifiedCraters are the rule...everybody was a tView AnswerShow Answer

The average rate of erosion on the Moon is far less than on Earth because

Correct AnswerverifiedShow Answer

Explain what causes high tides on Earth.

Correct AnswerverifiedThe Moon is closest to the side facing i...View AnswerShow Answer

Almost all of our atmospheric gases lie in the

Correct AnswerverifiedShow Answer

Each day, there are ________ high tides on Earth.

Correct AnswerverifiedShow Answer

The chief erosive agent now on the Moon is

Correct AnswerverifiedShow Answer

The most abundant gas in Earth's atmosphere is oxygen.

Correct AnswerverifiedShow Answer

When tectonic plates collide, they fuse together and come to rest.

Correct AnswerverifiedShow Answer

Infrared radiation is trapped close to our surface by the greenhouse effect.

Correct AnswerverifiedShow Answer

Which of these is not a product of plate tectonics and hot spots?

Correct AnswerverifiedShow Answer

When the Moon is described as tidally locked, that means that it does not rotate.

Correct AnswerverifiedShow Answer

What gas is the primary constituent of our atmosphere?

Correct AnswerverifiedShow Answer

What were the two primary courses of heating that let the Earth differentiate? Which is more important to us today?

Correct AnswerverifiedImpacts of asteroids and radio...View AnswerShow Answer

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S-waves cause side-to-side motion. These...
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Craters are the rule...everybody was a t
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The Moon is closest to the side facing i...
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Impacts of asteroids and radio...
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