About this Study Set
This study set covers Science through
20 practice questions.
A collection of 20 elementary questions exploring biological concepts alongside facts about space, astronomy, and the universe. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 20 questions from the
Biology and the Universe: A North American Perspective study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which planet in our solar system is known as the 'Red Planet' and has been the target of many robotic biological exploration missions by NASA?
-
A
Venus
-
B
Mars
-
C
Jupiter
-
D
Saturn
2
What is the primary source of energy for almost all biological life on Earth?
-
A
The Moon
-
B
The Sun
-
C
Mars
-
D
Jupiter
3
Which North American space agency is responsible for researching the effects of space travel on human biology?
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A
ESA
-
B
JAXA
-
C
NASA
-
D
Roscosmos
4
What celestial body provides the gravitational pull responsible for the tides that affect coastal biological ecosystems in North America?
-
A
The Sun
-
B
Mars
-
C
The Moon
-
D
Venus
5
Which gas, vital for the survival of aerobic biological organisms, is found in the Earth's atmosphere?
-
A
Oxygen
-
B
Hydrogen
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C
Helium
-
D
Methane
6
Which planet is the largest in our solar system?
-
A
Earth
-
B
Mars
-
C
Jupiter
-
D
Neptune
7
What is the name of the galaxy that contains our Solar System and the planet Earth?
-
A
Andromeda
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B
Milky Way
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C
Sombrero
-
D
Whirlpool
8
Which organ in the human body is most affected by microgravity, leading to muscle and bone loss during long-term space missions?
-
A
Brain
-
B
Stomach
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C
Musculoskeletal system
-
D
Liver
9
What do plants absorb from the atmosphere to perform photosynthesis, a process essential for life on Earth?
-
A
Nitrogen
-
B
Carbon dioxide
-
C
Neon
-
D
Argon
10
Which planet is closest to the Sun?
-
A
Venus
-
B
Earth
-
C
Mercury
-
D
Mars
11
What is the study of the possibility of life existing elsewhere in the universe called?
-
A
Geology
-
B
Astrobiology
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C
Meteorology
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D
Oceanography
12
Which planet is often called Earth's 'sister planet' due to its similar size and density?
-
A
Mars
-
B
Venus
-
C
Jupiter
-
D
Saturn
13
How many planets are in our solar system?
14
What layer of the Earth's atmosphere protects biological life from harmful ultraviolet radiation from the Sun?
-
A
Troposphere
-
B
Ozone layer
-
C
Mesosphere
-
D
Thermosphere
15
Which dwarf planet was famously reclassified in 2006?
-
A
Ceres
-
B
Eris
-
C
Pluto
-
D
Haumea
16
What force keeps biological organisms on the surface of the Earth?
-
A
Magnetism
-
B
Gravity
-
C
Friction
-
D
Inertia
17
What is the name of the star at the center of our solar system?
-
A
Proxima Centauri
-
B
Polaris
-
C
The Sun
-
D
Betelgeuse
18
Which planet has the most extensive and visible ring system?
-
A
Jupiter
-
B
Saturn
-
C
Uranus
-
D
Neptune
19
What is the process called when plants convert sunlight into chemical energy?
-
A
Respiration
-
B
Photosynthesis
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C
Digestion
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D
Fermentation
20
Which instrument is used by scientists to observe distant stars and galaxies?
-
A
Microscope
-
B
Telescope
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C
Stethoscope
-
D
Barometer
