Question 1

There is a greatest movement of plasma in the

Accepted Answer

A)  convection zone.
B)  radiation zone.
C)  core.
D)  All of the above.

Question 2

Why is Mars' greenhouse effect negligible compared to that of Earth's?

Accepted Answer

A)  Its mass is only one-ninth of Earth's.
B)  Greenhouse gas emissions were greatly curtailed according to the International Mars Greenhouse Gas Reduction Treaty of 2003.
C)  The Martian atmosphere is much thinner and retains little heat.
D)  Martian carbon dioxide contains a rare isotope with little ability to trap heat.

Question 3

Where did Saturn's rings likely come from?

Accepted Answer

A)  either a moon that never formed,or a moon destroyed by tidal forces
B)  the decay of radioactive particles in the outer fringes of Saturn's upper atmosphere
C)  volcanic activity on its surface ejecting matter into space
D)  the gravitational capture of micro-asteroids

Question 4

Pretend you are on a morning time mission on the surface of Venus.When looking out the spacepod window you are likely to see

Accepted Answer

A)  the Sun rising in the West.
B)  the Sun rising in the East.
C)  fierce windstorms everywhere you look.
D)  thick and still smog-like cloud cover.

Question 5

In what region of the Sun is solar energy generated?

Accepted Answer

A)  the outer surface
B)  the inner surface
C)  the mid-interior
D)  the inner core

Question 6

Comets orbit about the

Accepted Answer

A)  Sun.
B)  Moon.
C)  Earth.
D)  all of these
E)  none of these

Question 7

Neptune was discovered by irregularities in the orbit of

Accepted Answer

A)  Jupiter.
B)  Saturn.
C)  Uranus.
D)  Pluto.
E)  Earth.

Question 8

Each second,the burning Sun's mass

Accepted Answer

A)  decreases.
B)  increases.
C)  remains unchanged.

Question 9

At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to cause mass extinctions?

Accepted Answer

A)  about every 1 million years
B)  about every 10 million years
C)  about every 100 million years
D)  This has yet to occur on Earth.

Question 10

The external region of the Sun that tends to be pink is the

Accepted Answer

A)  photosphere.
B)  chromosphere.
C)  mesosphere.
D)  corona.

Question 11

The solar system consists mostly of

Accepted Answer

A)  the Sun.
B)  the planets.
C)  the Sun and the planets combined.
D)  empty space.

Question 12

In a museum collection you can likely see a

Accepted Answer

A)  meteoroid but not a meteorite.
B)  meteor but not a meteoroid.
C)  meteorite but not a meteoroid.

Question 13

What is the evidence that the Sun is a relatively new star in the universe?

Accepted Answer

Spectroscopic investigations show that t...

Question 14

When the Sun passes between the Moon and the Earth,we have

Accepted Answer

A)  a solar eclipse.
B)  a lunar eclipse.
C)  met our end.

Question 15

In what region of Mars is microscopic life most likely to exist?

Accepted Answer

A)  At the poles,where ice caps may harbor microorganisms.
B)  At the equator,where temperatures are most moderate.
C)  Deep within the planet's core.
D)  Beneath the planet's surface,where melting water may pool.

Question 16

The planet that is most tipped to its orbital plane is

Accepted Answer

A)  Mars.
B)  Jupiter.
C)  Saturn.
D)  Uranus.
E)  Neptune.

Question 17

The materials that compose most of Titan are completely different than those that compose Earth.Therefore,what were scientist surprised to see from space-probe images in a 2005 landing?

Accepted Answer

A)  some indications that an ancient civilization may have inhabited Titan approximately 500,000 years ago
B)  a landscape similar to Earth's
C)  an utterly alien landscape,unlike anything seen on Earth
D)  the image of a man's face on an equatorial mountain range

Question 18

A spinning cloud of interstellar gas tends to

Accepted Answer

A)  disperse.
B)  flatten.
C)  turn into a sphere.
D)  condense.

Question 19

When the alignment of the Sun,the Moon,and Earth produce a lunar eclipse,the body that is in between the other two is the

Accepted Answer

A)  Sun.
B)  Moon.
C)  Earth.

Question 20

About how deep is the photosphere?

Accepted Answer

A)  300 meters
B)  500 meters
C)  300 km
D)  500 km

Exam 26: The Solar System

The materials that compose most of Titan are completely different than those that compose Earth.Therefore,what were scientist surprised to see from space-probe images in a 2005 landing?

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When the Sun passes between the Moon and the Earth,we have

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A spinning cloud of interstellar gas tends to

Correct AnswerverifiedShow Answer

Why is Mars' greenhouse effect negligible compared to that of Earth's?

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What is the evidence that the Sun is a relatively new star in the universe?

Correct AnswerverifiedSpectroscopic investigations show that t...View AnswerShow Answer

The external region of the Sun that tends to be pink is the

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In what region of the Sun is solar energy generated?

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At about what frequency is Earth struck by a meteorite large enough (about 10 km in diameter) to cause mass extinctions?

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The planet that is most tipped to its orbital plane is

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Where did Saturn's rings likely come from?

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Neptune was discovered by irregularities in the orbit of

Correct AnswerverifiedShow Answer

There is a greatest movement of plasma in the

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In a museum collection you can likely see a

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In what region of Mars is microscopic life most likely to exist?

Correct AnswerverifiedShow Answer

About how deep is the photosphere?

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The solar system consists mostly of

Correct AnswerverifiedShow Answer

Pretend you are on a morning time mission on the surface of Venus.When looking out the spacepod window you are likely to see

Correct AnswerverifiedShow Answer

Each second,the burning Sun's mass

Correct AnswerverifiedShow Answer

Comets orbit about the

Correct AnswerverifiedShow Answer

When the alignment of the Sun,the Moon,and Earth produce a lunar eclipse,the body that is in between the other two is the

Correct AnswerverifiedShow Answer

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Spectroscopic investigations show that t...
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