Questions & Answers
Browse all 25 questions from the
Cosmic Logical Reasoning study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
If Mercury is the closest planet to the Sun, and Venus is the second, which planet is logically the third from the Sun?
-
A
Mars
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B
Earth
-
C
Jupiter
-
D
Saturn
2
If a gas giant is defined as a planet composed mostly of hydrogen and helium, which of these is logically a gas giant?
-
A
Mars
-
B
Venus
-
C
Saturn
-
D
Mercury
3
If the inner planets are rocky and the outer planets are gaseous, which planet does not belong in the 'rocky' category?
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A
Mars
-
B
Venus
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C
Neptune
-
D
Earth
4
If a light-year is the distance light travels in one year, which of these is the closest star to the Sun?
-
A
Proxima Centauri
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B
Sirius
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C
Vega
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D
Betelgeuse
5
If a planet must clear its orbit to be classified as a planet, why is Pluto classified as a dwarf planet?
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A
It is too cold
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B
It has not cleared its neighborhood
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C
It is made of gas
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D
It has no moon
6
If Earth rotates once every 24 hours, approximately how long does it take for the Moon to complete one rotation on its axis?
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A
24 hours
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B
12 hours
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C
27.3 days
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D
365 days
7
If all terrestrial planets have solid surfaces, which planet is NOT a terrestrial planet?
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A
Mars
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B
Mercury
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C
Jupiter
-
D
Venus
8
If the asteroid belt is located between two planets, which are they?
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A
Earth and Mars
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B
Mars and Jupiter
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C
Jupiter and Saturn
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D
Venus and Earth
9
If Olympus Mons is the tallest volcano in the solar system, on which planet is it located?
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A
Earth
-
B
Venus
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C
Mars
-
D
Mercury
10
If Venus is the hottest planet in the solar system due to its atmosphere, what is the primary component of that atmosphere?
-
A
Oxygen
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B
Carbon Dioxide
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C
Nitrogen
-
D
Hydrogen
11
If moons are natural satellites, which planet has the largest moon in the solar system, Ganymede?
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A
Saturn
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B
Jupiter
-
C
Uranus
-
D
Neptune
12
If the Sun accounts for the vast majority of the solar system's mass, what percentage does it represent?
-
A
50%
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B
75%
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C
99.8%
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D
90%
13
If Neptune is the most distant major planet, which planet is the second most distant?
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A
Uranus
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B
Saturn
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C
Jupiter
-
D
Mars
14
If a planet's day is defined by its rotation, which planet has the longest day, taking 243 Earth days to rotate once?
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A
Mercury
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B
Venus
-
C
Mars
-
D
Jupiter
15
If Earth is the only planet known to support life, which chemical element is considered essential for 'life as we know it'?
-
A
Gold
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B
Carbon
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C
Iron
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D
Helium
16
If ring systems are common among gas giants, which planet has the most extensive and visible ring system?
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A
Jupiter
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B
Uranus
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C
Neptune
-
D
Saturn
17
If gravity keeps planets in orbit, what keeps the solar system rotating around the center of the Milky Way?
-
A
A massive black hole
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B
Dark matter
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C
A nearby star
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D
Magnetism
18
If Phobos and Deimos are moons of a specific planet, which planet are they orbiting?
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A
Jupiter
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B
Mars
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C
Saturn
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D
Uranus
19
If the Great Red Spot is a persistent high-pressure storm, on which planet is it found?
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A
Saturn
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B
Jupiter
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C
Neptune
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D
Venus
20
If the temperature of the Sun's surface is about 5,500 degrees Celsius, what is the layer called?
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A
Corona
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B
Photosphere
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C
Core
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D
Chromosphere
21
If Earth's axis is tilted, what is the approximate degree of this tilt?
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A
15 degrees
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B
23.5 degrees
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C
45 degrees
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D
90 degrees
22
If Titan is a major moon with a thick atmosphere, which planet does it orbit?
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A
Jupiter
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B
Saturn
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C
Uranus
-
D
Neptune
23
If ice giants are a subset of gas giants, which two planets are classified as ice giants?
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A
Jupiter and Saturn
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B
Uranus and Neptune
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C
Mars and Earth
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D
Mercury and Venus
24
If the Milky Way is a galaxy, what type of galaxy is it classified as?
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A
Elliptical
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B
Irregular
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C
Spiral
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D
Lenticular
25
If orbital periods increase with distance from the Sun, which planet takes the longest to orbit the Sun?
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A
Jupiter
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B
Saturn
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C
Uranus
-
D
Neptune
