Planets

What separates the inner planets from the outer planets in our solar system?

• A mountain range

• A river

• A cloud of dust

• An asteroid belt

Which planet is the largest among the inner planets?

• Mercury

• Mars

• Venus

• Earth

What is the main component of Earth's atmosphere?

• Hydrogen and helium

• Nitrogen and oxygen

• Carbon dioxide

• Methane

How long does it take for Jupiter to complete one rotation?

• 24 hours

• 12 hours

• 9 hours and 55 minutes

• 17 hours and 14 minutes

Which planet is not tilted on its axis?

• Earth

• Venus

• Mars

• Mercury