Planets MCQs with Answers
Which planet has the smallest diameter in our solar system?
- A. Mercury
- B. Mars
- C. Venus
- D. Earth
Approximately how many kilometers is Earth’s equatorial diameter?
- A. 12,756 km
- B. 12,742 km
- C. 13,000 km
- D. 12,000 km
Which space agency launched the Saturn V rocket?
- A. NASA (United States)
- B. ESA (Europe)
- C. Roscosmos (Russia)
- D. ISRO (India)
Which planet in our solar system has no natural moons?
- A. Mercury
- B. Venus
- C. Earth
- D. Mars
What is the average distance from Earth to the Moon?
- A. 384,400 km
- B. 150,000 km
- C. 400,000 km
- D. 300,000 km
How many planets are officially recognized in our solar system?
- A. Eight
- B. Nine
- C. Seven
- D. Ten
Which planet is fifth in order from the Sun?
- A. Jupiter
- B. Mars
- C. Saturn
- D. Venus
In July 2024, NASA detected sulfur compounds on which planet?
- A. Mars
- B. Venus
- C. Jupiter
- D. Mercury
Which planet has the highest average density?
- A. Earth
- B. Mercury
- C. Jupiter
- D. Neptune
Which planet is famous for its prominent ring system?
- A. Saturn
- B. Uranus
- C. Jupiter
- D. Neptune
The Sun is classified as a:
- A. Star
- B. Planet
- C. Asteroid
- D. Comet
Snow-capped mountains have been observed on which dwarf planet?
- A. Pluto
- B. Mars
- C. Earth
- D. Venus
Why does the Sun always appear to rise in the east?
- A. Earth rotates from west to east
- B. Sun moves eastward
- C. Earth orbits the Sun
- D. Sun’s axis tilts
Most commercial airliners cruise in which layer of the atmosphere?
- A. Stratosphere
- B. Troposphere
- C. Mesosphere
- D. Thermosphere
What is the second-largest moon in our solar system?
- A. Titan
- B. Ganymede
- C. Callisto
- D. Io
In July 2024, NASA announced discovery of how many new exoplanets?
- A. 6
- B. 4
- C. 8
- D. 10
In what year was Pluto reclassified as a dwarf planet?
- A. 2006
- B. 1995
- C. 2010
- D. 2000
To an astronaut in orbit, the sky appears to be:
- A. Dark
- B. Blue
- C. Red
- D. Green
What is the lightest element found on Earth?
- A. Hydrogen
- B. Helium
- C. Oxygen
- D. Nitrogen
Which element makes up the largest portion of Earth’s crust?
- A. Oxygen
- B. Silicon
- C. Iron
- D. Aluminum
Approximately what percentage of Earth's surface is covered by salt water?
- A. 97%
- B. 85%
- C. 75%
- D. 50%
What is Earth's approximate equatorial circumference?
- A. 40,075 km
- B. 20,000 km
- C. 50,000 km
- D. 30,000 km
A lunar eclipse happens when:
- A. Earth passes between the Sun and the Moon
- B. Moon passes between the Sun and Earth
- C. Sun passes between Earth and the Moon
- D. Moon is directly behind the Sun
How does the Sun’s heat primarily reach Earth?
- A. Radiation
- B. Conduction
- C. Convection
- D. Reflection
What imaginary line divides Earth into Northern and Southern Hemispheres?
- A. Equator
- B. Prime Meridian
- C. Tropic of Cancer
- D. Arctic Circle
An object’s weight would be least at:
- A. Earth’s center
- B. North Pole
- C. Equator
- D. Mount Everest summit
Asteroids are best described as:
- A. Small rocky bodies orbiting the Sun
- B. Satellites of a planet
- C. Fragments of comets
- D. Distant dwarf planets
How many planets can you see from Earth without a telescope?
- A. 5
- B. 4
- C. 6
- D. 7
Two identical Viking spacecraft landed on Mars in which year?
- A. 1976
- B. 1965
- C. 1980
- D. 1990
Which natural satellite belongs to Earth?
- A. Moon
- B. Phobos
- C. Europa
- D. Titan
Which planet is sometimes called the “Green Planet”?
- A. Uranus
- B. Jupiter
- C. Saturn
- D. Neptune
Which star is the brightest as seen from Earth?
- A. Sirius
- B. Polaris
- C. Betelgeuse
- D. Rigel
The scientific study of stars, planets, and other objects in space is called:
- A. Astronomy
- B. Geology
- C. Meteorology
- D. Biology
The estimated age of the universe is about:
- A. 13.7 billion years
- B. 4.5 billion years
- C. 10 billion years
- D. 20 billion years
Objects in free fall experience gravitational acceleration that is:
- A. Positive
- B. Negative
- C. Zero
- D. Variable
Which phenomenon provides evidence that Earth is spherical?
- A. Solar eclipse
- B. Lunar eclipse
- C. Equinox
- D. Solstice
Which layer of the atmosphere protects Earth from the Sun’s harmful ultraviolet rays?
- A. Troposphere
- B. Stratosphere
- C. Ozone layer
- D. Mesosphere
Which is the thinnest layer of Earth?
- A. Crust
- B. Mantle
- C. Outer core
- D. Inner core
Which statement about sound is true?
- A. Sound travels through a vacuum
- B. Sound cannot travel through a vacuum
- C. Sound travels only through solids
- D. Sound travels only through air
How many inner (terrestrial) planets are there in our solar system?
- A. 4
- B. 5
- C. 3
- D. 2
The Earth’s inner core has an approximate diameter of:
- A. 1,200 miles
- B. 2,200 miles
- C. 3,200 miles
- D. 4,200 miles
Life is absent on the Moon due to the lack of:
- A. Water
- B. Atmosphere
- C. Gravity
- D. Sunlight
About how many moons are there in the entire Solar System?
- A. More than 200
- B. Around 100
- C. Around 150
- D. Less than 50
The tibia is a bone located in the:
- A. Arm
- B. Leg
- C. Skull
- D. Spine
How many types of lunar eclipses are there?
- A. 2
- B. 3
- C. 4
- D. 5
A phase in which the Moon appears larger than half but is not full is called the:
- A. Gibbous Moon
- B. Supermoon
- C. Blue Moon
- D. Harvest Moon
Earthquake energy travels outward from the focus as:
- A. Seismic waves
- B. Sound waves
- C. Light waves
- D. Tsunamis
The boundary between the mantle and the core lies at about:
- A. 1,000 km
- B. 2,000 km
- C. 3,000 km
- D. 4,000 km
Which fact proves that Earth rotates on its axis?
- A. Day and night
- B. Seasons
- C. Tides
- D. Eclipses
Which of these is a non-metallic mineral?
- A. Gypsum
- B. Iron ore
- C. Copper
- D. Gold
Peanut butter is an example of a:
- A. High viscosity liquid
- B. Low viscosity liquid
- C. Gas
- D. Solid
Ozone layer depletion is primarily caused by:
- A. Air pollution
- B. Water pollution
- C. Deforestation
- D. Soil erosion
Aluminum makes up approximately what percentage of Earth’s crust?
- A. 1.59%
- B. 5%
- C. 10%
- D. 0.5%
The Sun generates energy through:
- A. Nuclear fusion
- B. Nuclear fission
- C. Chemical combustion
- D. Gravitational collapse
The Earth’s shape is best described as a:
- A. Perfect sphere
- B. Oblate spheroid
- C. Prolate spheroid
- D. Cube
Most comets travel in what type of orbit?
- A. Elliptical
- B. Circular
- C. Parabolic
- D. Hyperbolic
Seasons change on Earth because:
- A. Earth revolves around the Sun
- B. Earth rotates on its axis
- C. Moon orbits Earth
- D. Sun’s tilt changes
Dark, cooler areas on the Sun’s surface are called:
- A. Sunspots
- B. Solar flares
- C. Prominences
- D. Coronal holes
By size, Earth ranks what number among the solar system planets?
- A. 5th
- B. 3rd
- C. 4th
- D. 6th
Earth orbits the Sun at about how many km/s?
- A. 29 km/s
- B. 10 km/s
- C. 50 km/s
- D. 100 km/s
The theory describing the universe’s origin from an explosion ~15 billion years ago is called the:
- A. Big Bang Theory
- B. Steady State Theory
- C. Oscillating Universe
- D. String Theory
The time Earth takes to complete one orbit around the Sun is called a:
- A. Year
- B. Month
- C. Day
- D. Season
The volume of Earth’s inner core is about what percentage of the total?
- A. 16%
- B. 10%
- C. 25%
- D. 5%
Earth’s atmosphere is divided into layers based on changes in:
- A. Air temperature
- B. Air pressure
- C. Humidity
- D. Oxygen content
NASA is the space agency of which country?
- A. United States
- B. Russia
- C. China
- D. India
Earth rotates on its axis from:
- A. West to East
- B. East to West
- C. North to South
- D. South to North
Which term is used in the geographic coordinate system?
- A. Latitude
- B. Atmosphere
- C. Magnetosphere
- D. Ecosystem
Our solar system has how many planets?
- A. 8
- B. 9
- C. 7
- D. 10
In botany, “germinate” best means to:
- A. Sprout
- B. Wilt
- C. Photosynthesize
- D. Dormant
A seed develops into a plant structure called the:
- A. Ovule
- B. Pollen
- C. Stigma
- D. Leaf
The age of our solar system is about:
- A. 4.5 billion years
- B. 2 billion years
- C. 10 billion years
- D. 1 billion years
Earth exhibits how many simultaneous motions?
- A. 2
- B. 1
- C. 3
- D. 4
The central part of Earth is called the:
- A. Core
- B. Mantle
- C. Crust
- D. Lithosphere
Common desert plants include cactus, ziziphus, acacia, palm and:
- A. Opuntia
- B. Oak
- C. Birch
- D. Maple
The approximate temperature at Earth’s center is:
- A. 5000°C
- B. 1000°C
- C. 2000°C
- D. 10000°C
On maps, the north pole of a magnet is often colored:
- A. Red
- B. Blue
- C. Green
- D. Yellow
Which is largest in the Universe?
- A. Galaxy
- B. Solar system
- C. Planet
- D. Star
Halley’s Comet returns to Earth’s vicinity every:
- A. 76 years
- B. 50 years
- C. 100 years
- D. 20 years
Dark, low-hanging clouds near Earth’s surface are called:
- A. Nimbus Clouds
- B. Cirrus Clouds
- C. Cumulus Clouds
- D. Stratus Clouds
The Great Red Spot on Jupiter is actually a:
- A. Storm
- B. Volcano
- C. Mountain
- D. Crater
Tectonic plates shift at roughly:
- A. 1–2 cm per year
- B. 10 cm per year
- C. 5 cm per year
- D. 20 cm per year
Saltwater seas and oceans cover about what percent of Earth’s surface?
- A. 70%
- B. 50%
- C. 90%
- D. 30%
Radio waves travel ______ sound waves:
- A. Faster than
- B. Slower than
- C. At the same speed as
- D. Cannot travel in air
Photovoltaic cells convert sunlight into electricity via:
- A. Chemical process
- B. Mechanical process
- C. Thermal process
- D. Nuclear process
The planets closest to Earth in order are:
- A. Mars, Mercury, Venus
- B. Venus, Mars, Mercury
- C. Mercury, Venus, Mars
- D. Mars, Venus, Mercury
Mass is to kilogram as Universe is to:
- A. Solar System
- B. Galaxy
- C. Planet
- D. Star
Who discovered that planets follow elliptical orbits?
- A. Johannes Kepler
- B. Isaac Newton
- C. Galileo Galilei
- D. Nicolaus Copernicus
Table Mountain is located in which country?
- A. South Africa
- B. Australia
- C. Brazil
- D. India
Caledonia was the Roman name for modern-day:
- A. Scotland
- B. Wales
- C. Ireland
- D. England
The star closest to the Sun is:
- A. Proxima Centauri
- B. Alpha Centauri A
- C. Sirius
- D. Barnard’s Star
Different seasons on Earth are caused by:
- A. Earth’s tilt on its axis
- B. Earth’s revolution around the Sun
- C. Variations in solar output
- D. Changes in Earth’s distance from the Sun
A lunar eclipse happens when:
- A. The Moon passes between Earth and the Sun
- B. Earth’s shadow falls on the Moon
- C. The Sun passes between Earth and the Moon
- D. The Moon enters the Sun’s corona
The lowest layer of Earth’s atmosphere is called the:
- A. Stratosphere
- B. Mesosphere
- C. Thermosphere
- D. Troposphere
By distance from the Sun, Earth ranks as the _____ planet:
- A. Second
- B. Third
- C. Fourth
- D. Fifth
Planetary motions follow which laws?
- A. Newton’s laws
- B. Kepler’s laws
- C. Ohm’s laws
- D. Archimedes’ laws
The galaxy nearest to the Milky Way is:
- A. Triangulum
- B. Andromeda
- C. Whirlpool
- D. Sombrero
The semi-liquid layer beneath Earth’s crust is called the:
- A. Outer core
- B. Mantle
- C. Lithosphere
- D. Asthenosphere
A celestial body that orbits the Sun is known as a:
- A. Moon
- B. Asteroid
- C. Planet
- D. Meteor
The green color of most plant leaves is due to:
- A. Chlorophyll
- B. Carotene
- C. Anthocyanin
- D. Xanthophyll
Earth _____ around the Sun once every year.
- A. Rotates
- B. Revolves
- C. Wobbles
- D. Drifts
Earth takes about how many minutes to rotate by one degree of longitude?
- A. 2 minutes
- B. 4 minutes
- C. 10 minutes
- D. 1 minute
An earthquake is classified as a:
- A. Weather event
- B. Volcanic eruption
- C. Natural disaster
- D. Tsunami
An earthquake is essentially the:
- A. Shaking of Earth's surface
- B. Flow of lava
- C. Tidal movement
- D. Formation of clouds
Without the Sun, the sky would appear:
- A. Blue
- B. Red
- C. Black
- D. Green
The movement of air across Earth’s surface is called:
- A. Rain
- B. Wind
- C. Tide
- D. Current
The Sun looks red at sunrise and sunset due to:
- A. Scattering by dust and air molecules
- B. Change in Sun’s temperature
- C. Reflection off clouds
- D. Sun’s magnetic activity
The amount of daylight varies because of Earth’s:
- A. Tilt
- B. Rotation
- C. Revolution
- D. Shape
Scientists estimate there are about how many galaxies in the universe?
- A. 1 million
- B. 1 billion
- C. 100 billion
- D. 1 trillion
The Richter scale measures the _____ of an earthquake:
- A. Depth
- B. Magnitude
- C. Duration
- D. Extent
What is the longitude of the prime meridian?
- A. 0°
- B. 90°E
- C. 180°
- D. 90°W
Approximately how many years ago was Earth formed?
- A. 4.6 billion
- B. 3.5 billion
- C. 5.4 billion
- D. 2.5 billion
A satellite orbiting Earth at constant speed experiences what kind of acceleration?
- A. Uniform acceleration
- B. Zero acceleration
- C. Variable acceleration
- D. No acceleration
Comets follow what type of orbit around the Sun?
- A. Highly elliptical
- B. Circular
- C. Parabolic
- D. Hyperbolic
The Sun is currently classified as a:
- A. Yellow dwarf
- B. Red giant
- C. White dwarf
- D. Blue supergiant
What does a wave transfer?
- A. Energy
- B. Matter
- C. Heat
- D. Momentum
Earth receives most of its energy from the:
- A. Sun
- B. Moon
- C. Jupiter
- D. Earth’s core
An earthquake of magnitude 7.1 on the Richter scale is generally considered:
- A. Destructive
- B. Minor
- C. Moderate
- D. Great
When magma reaches Earth’s surface, it is called:
- A. Lava
- B. Magma
- C. Tephra
- D. Basalt
Which phenomenon involves the rapid downslope movement of rock and soil?
- A. Landslide
- B. Earthquake
- C. Volcano
- D. Flood
Our solar system is located in which galaxy?
- A. Milky Way
- B. Andromeda
- C. Triangulum
- D. Whirlpool
Light from the Sun takes about 8.3 minutes to reach Earth. Light reflected from the Moon takes roughly:
- A. 1.5 seconds
- B. 8 minutes
- C. 3 seconds
- D. 0.5 seconds
The structural and functional unit of the environment is the:
- A. Ecosystem
- B. Biosphere
- C. Community
- D. Population
Sunlight travels about what distance before reaching Earth?
- A. 150 million km
- B. 1 million km
- C. 15 million km
- D. 150 thousand km
Which unit is used to measure distances between stars and galaxies?
- A. Light year
- B. Kilometer
- C. Astronomical unit
- D. Parsec
Acid rain is a major cause of which type of pollution?
- A. Soil pollution
- B. Air pollution
- C. Water pollution
- D. Noise pollution
During a total solar eclipse, the rate of photosynthesis in plants will:
- A. Decrease
- B. Increase
- C. Remain unchanged
- D. Stop completely
On space probes, a spectroscope is used to:
- A. Study the chemical composition of stars
- B. Measure solar wind speed
- C. Detect gravitational waves
- D. Map planetary surfaces
Which of the following is NOT a natural satellite?
- A. Sputnik-1
- B. Moon
- C. Ganymede
- D. Titan
The Sun contains approximately what percentage of the solar system’s total mass?
- A. 99.86%
- B. 50%
- C. 90%
- D. 75%
Light from the Sun takes about how long to reach Earth?
- A. 8 minutes
- B. 1 minute
- C. 15 minutes
- D. 30 minutes
The minimum velocity required to place a satellite into orbit is called its:
- A. Orbital velocity
- B. Escape velocity
- C. Terminal velocity
- D. Critical velocity
Planet Mercury completes one orbit around the Sun in approximately how many days?
- A. 88 days
- B. 365 days
- C. 225 days
- D. 687 days
The first thin crescent of the Moon after new moon is called the:
- A. Hilal
- B. Gibbous
- C. Crescent
- D. Quarter
Earth completes one full rotation on its axis in:
- A. 23 hours, 56 minutes and 4.9 seconds
- B. 24 hours
- C. 12 hours
- D. 365.25 days
Earth takes about how many days to complete one revolution around the Sun?
- A. 365.25 days
- B. 30 days
- C. 365 days
- D. 24 hours
How many known moons orbit Jupiter?
- A. 79
- B. 2
- C. 27
- D. 14
By its order from the Sun, Jupiter is the _____ planet.
- A. Fifth
- B. Fourth
- C. Sixth
- D. Third
Jupiter, the largest planet, completes one rotation in about:
- A. 10 hours
- B. 24 hours
- C. 88 days
- D. 365 days
How many moons does Neptune have?
- A. 14
- B. 8
- C. 22
- D. 5
In a nuclear reaction, energy is released primarily due to:
- A. Uncontrolled chain reaction
- B. Controlled chain reaction
- C. Photon emission
- D. Electron capture
Why does the sky appear blue?
- A. Scattering of light by the atmosphere
- B. Reflection from oceans
- C. Absorption by clouds
- D. Refraction by air
Which is the outermost planet in the solar system?
- A. Neptune
- B. Uranus
- C. Pluto
- D. Saturn
Who first proposed that the solar system is heliocentric?
- A. Copernicus
- B. Kepler
- C. Galileo
- D. Newton
The Sun appears to rise in the east and set in the west due to:
- A. Earth’s rotation about its axis
- B. Earth’s revolution around the Sun
- C. Sun’s rotation
- D. Moon’s orbit
Which is currently the largest known star in the universe?
- A. UY Scuti
- B. Betelgeuse
- C. Rigel
- D. VY Canis Majoris
The longest day of the year in the Northern Hemisphere is observed on:
- A. 21 May
- B. 21 June
- C. 22 December
- D. 21 March
Sunlight can penetrate ocean water to a depth of about:
- A. 200 meters
- B. 50 meters
- C. 500 meters
- D. 20 meters
The ozone layer protects Earth from harmful ____ radiation from the Sun.
- A. Ultraviolet
- B. Infrared
- C. Gamma
- D. X-ray
Communication satellites are typically placed in:
- A. Geostationary orbit
- B. Low Earth orbit
- C. Polar orbit
- D. Molniya orbit
The solar eclipse of December 2019 visible in Pakistan was called the:
- A. Ring of Fire
- B. Blood Moon
- C. Blue Moon
- D. Harvest Moon
ISA is the space agency of which country?
- A. Iran
- B. Italy
- C. Iraq
- D. Indonesia
Which are the inner planets of our solar system?
- A. Mercury, Venus, Earth, Mars
- B. Venus, Earth, Mars, Jupiter
- C. Earth, Mars, Jupiter, Saturn
- D. Mercury, Venus, Mars, Jupiter
Earth’s magnetic field has a horizontal component everywhere except at the:
- A. Magnetic poles
- B. Equator
- C. Prime meridian
- D. International Date Line
CNES is the space agency of which country?
- A. France
- B. Canada
- C. China
- D. Chile
Most asteroids are found in the:
- A. Asteroid belt between Mars and Jupiter
- B. Kuiper belt
- C. Oort cloud
- D. Near-Earth space
What is the primary color of Earth when viewed from space?
- A. Blue
- B. Red
- C. Green
- D. White
ISRO is the space agency of which country?
- A. India
- B. Israel
- C. Iran
- D. Italy
Earth’s core is primarily composed of:
- A. Nickel and iron
- B. Silicon and oxygen
- C. Magnesium and aluminum
- D. Calcium and sodium
The age of Earth is estimated to be about:
- A. 4.54 million years
- B. 4.54 billion years
- C. 3.5 billion years
- D. 5.4 billion years
Arrange these planets in order from closest to farthest from the Sun: Jupiter, Venus, Mars, Earth.
- A. Venus, Earth, Mars, Jupiter
- B. Earth, Venus, Mars, Jupiter
- C. Mars, Earth, Venus, Jupiter
- D. Jupiter, Mars, Earth, Venus
Asteroids are mainly found between the orbits of:
- A. Mars and Jupiter
- B. Earth and Mars
- C. Jupiter and Saturn
- D. Venus and Earth
What do we call a ‘shooting star’?
- A. Meteor
- B. Comet
- C. Asteroid
- D. Satellite
Which country discovered the world’s largest ribbon weed in June 2022?
- A. Australia
- B. USA
- C. Japan
- D. Brazil
Moon phases occur because we only see the portion of the Moon that:
- A. Reflects sunlight toward us
- B. Is illuminated by Earth
- C. Faces away from the Sun
- D. Is in Earth’s shadow
About how many Earths could fit inside the Sun by volume?
- A. 1,300,000
- B. 109
- C. 330,000
- D. 10,000
The Sun’s mass is approximately equal to how many Earth masses?
- A. 330,000
- B. 1,000
- C. 100,000
- D. 10,000
The Sun was formed roughly how long ago?
- A. 4.57 billion years
- B. 2 billion years
- C. 10 billion years
- D. 1 billion years
Mercury, Venus, Earth and Mars are called terrestrial planets because they are:
- A. Rocky
- B. Gaseous
- C. Icy
- D. Metallic
Jupiter, Saturn, Uranus and Neptune are called gas giants because they are largely composed of:
- A. Gases
- B. Rocks
- C. Ice
- D. Metals
Our Sun is one of the ______ of stars in our galaxy:
- A. Billions
- B. Thousands
- C. Millions
- D. Hundreds
_____ generate their own light.
- A. Stars
- B. Planets
- C. Moons
- D. Asteroids
Earth’s Moon is also called:
- A. Luna
- B. Phobos
- C. Deimos
- D. Europa
The largest moon in our solar system is:
- A. Ganymede
- B. Titan
- C. Callisto
- D. Io
How many moons does Uranus have?
- A. 27
- B. 13
- C. 5
- D. 82
The largest moon of Uranus is called:
- A. Titania
- B. Miranda
- C. Ariel
- D. Umbriel
Neptune has how many rings?
- A. Six
- B. One
- C. Three
- D. Nine
Rocky, metallic and stony debris orbiting the Sun are called:
- A. Meteoroids
- B. Comets
- C. Satellites
- D. Planetesimals
Vesta is an example of a(n):
- A. Asteroid
- B. Comet
- C. Dwarf planet
- D. Meteor
Small celestial bodies made of ice, dust and rock with tails are called:
- A. Comets
- B. Asteroids
- C. Meteoroids
- D. Kuiper belt objects
The solid center of a comet is called its:
- A. Nucleus
- B. Core
- C. Crust
- D. Mantle
An object that orbits a larger body, such as a planet or star, is called a:
- A. Satellite
- B. Meteor
- C. Galaxy
- D. Nebula
A naturally occurring object in orbit around a planet is known as a:
- A. Natural satellite
- B. Artificial satellite
- C. Space probe
- D. Manned spacecraft
A man-made object placed into orbit around Earth is called a(n):
- A. Artificial satellite
- B. Natural satellite
- C. Meteor
- D. Space station
The sky appears blue because the atmosphere _____ shorter wavelengths of light.
- A. Scatters
- B. Absorbs
- C. Reflects
- D. Polarizes
All planets in our solar system except _____ have moons.
- A. Venus and Mercury
- B. Earth and Mars
- C. Jupiter and Saturn
- D. Uranus and Neptune
Which NASA mission first landed humans on the Moon in 1969?
- A. Apollo 11
- B. Apollo 8
- C. Sputnik
- D. Viking 1
Irregularly shaped solid objects made of rock and metal are called:
- A. Asteroids
- B. Meteoroids
- C. Comets
- D. Planets
Comets are primarily found beyond the orbit of:
- A. Neptune and Pluto
- B. Mars and Jupiter
- C. Earth and Mars
- D. Saturn and Uranus
Comets, with their nucleus, coma and tail, resemble:
- A. Long hair strands
- B. Shooting stars
- C. Dust clouds
- D. Icebergs
Which country launched the first artificial satellite into space?
- A. The Soviet Union
- B. United States
- C. China
- D. India
Roscosmos (RKA) is the space agency of which country?
- A. Russia
- B. USA
- C. China
- D. India
CNSA is the space agency of which country?
- A. China
- B. Canada
- C. France
- D. South Korea
SUPARCO is the space agency of which country?
- A. Pakistan
- B. Pakistan
- C. Israel
- D. Australia
KARI is the space agency of which country?
- A. South Korea
- B. North Korea
- C. Japan
- D. India
ESA is the space agency of which region?
- A. Europe
- B. Asia
- C. Africa
- D. South America