Planets of Our Solar System MCQs with Answers

Which is the second brightest object in the night sky after the Moon?

• A.Venus
• B.Jupiter
• C.Sirius
• D.Mars

Which planet is known as Earth's Twin?

• A.Mars
• B.Venus
• C.Mercury
• D.Jupiter

Past Paper MCQ

Planet _ orbits the Sun anti-clockwise, but spins clockwise on its axis.

• A.Mars
• B.Uranus
• C.Venus
• D.Neptune

What is notable about the structure of Saturn's rings?

• A.They are perfectly uniform without any breaks
• B.They rotate in the opposite direction of Saturn
• C.They are composed entirely of liquid water
• D.They have several gaps and divisions

Which planet has the shortest day?

• A.Mercury
• B.Jupiter
• C.Saturn
• D.Earth

Which organization downgraded the status of Pluto to that of a 'dwarf planet'?

• A.International Union of Pure and Applied Chemistry (IUPAC)
• B.National Aeronautics and Space Administration (NASA)
• C.European Space Agency (ESA)
• D.International Astronomical Union (IAU)

Which planet is the third from the Sun?

• A.Venus
• B.Earth
• C.Mars
• D.Mercury

Which of the following statements is correct about the atmosphere of Mars?

• A.It has an abundant supply of Carbon Dioxide
• B.It is primarily composed of Nitrogen
• C.It contains a high percentage of Oxygen
• D.It is mostly made up of Methane

Which planet has the smallest escape velocity?

• A.Neptune
• B.Venus
• C.Mars
• D.Mercury

Which direction does Uranus rotate?

• A.North to south
• B.West to east
• C.East to west
• D.South to north