About this Study Set
This study set covers Environmental Science through
18 practice questions.
An exploration of planetary environments, space phenomena, and astronomical facts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Cosmic Environmental Science study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which planet in our solar system has the most extensive ring system?
-
A
Jupiter
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B
Saturn
-
C
Uranus
-
D
Neptune
2
What is the primary component of the atmosphere on Mars?
-
A
Nitrogen
-
B
Oxygen
-
C
Carbon Dioxide
-
D
Methane
3
Which moon of Jupiter is known for having a subsurface liquid water ocean beneath an icy crust?
-
A
Io
-
B
Europa
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C
Ganymede
-
D
Callisto
4
What is the term for the boundary around a black hole from which no light can escape?
-
A
Singularity
-
B
Event Horizon
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C
Accretion Disk
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D
Photon Sphere
5
Which chemical element is the most abundant in the Sun?
-
A
Helium
-
B
Oxygen
-
C
Hydrogen
-
D
Carbon
6
What phenomenon causes the Aurora Borealis on Earth?
-
A
Solar wind interacting with Earth's magnetic field
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B
Refraction of light through ice crystals
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C
Volcanic activity in the Arctic
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D
Chemical reactions in the ozone layer
7
What is the approximate age of the universe according to the Big Bang theory?
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A
4.5 billion years
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B
13.8 billion years
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C
20 billion years
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D
500 million years
8
Which planet has the longest day, rotating once on its axis every 243 Earth days?
-
A
Venus
-
B
Mars
-
C
Mercury
-
D
Saturn
9
What type of galaxy is the Milky Way?
-
A
Elliptical
-
B
Irregular
-
C
Spiral
-
D
Lenticular
10
Which planet's axis of rotation is tilted so severely that it essentially rotates on its side?
-
A
Uranus
-
B
Neptune
-
C
Saturn
-
D
Jupiter
11
The Great Red Spot is a persistent high-pressure storm located on which planet?
-
A
Saturn
-
B
Mars
-
C
Jupiter
-
D
Neptune
12
Which planet has a surface temperature hot enough to melt lead due to a runaway greenhouse effect?
-
A
Mercury
-
B
Mars
-
C
Venus
-
D
Jupiter
13
What is the nearest star system to our own solar system?
-
A
Proxima Centauri
-
B
Sirius
-
C
Betelgeuse
-
D
Alpha Centauri A
14
Which celestial body was reclassified as a dwarf planet in 2006 by the IAU?
-
A
Ceres
-
B
Pluto
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C
Eris
-
D
Makemake
15
What are the darker, cooler areas on the surface of the Sun called?
-
A
Solar flares
-
B
Sunspots
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C
Prominences
-
D
Coronal holes
16
Which gas, when present in the upper atmosphere, protects Earth from ultraviolet radiation?
-
A
Carbon Dioxide
-
B
Methane
-
C
Ozone
-
D
Argon
17
What is the term for the gravitational pull that keeps the Moon in orbit around the Earth?
-
A
Centrifugal force
-
B
Magnetic attraction
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C
Gravitational force
-
D
Inertia
18
What is the name of the region beyond Neptune that contains many icy objects and dwarf planets?
-
A
Asteroid Belt
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B
Oort Cloud
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C
Kuiper Belt
-
D
Galactic Halo
