Which planet has the greatest extremes of temperature?
Mars
Jupiter
Mercury
Venus
Which is the only natural satellite of the Earth?
Moon
Star
Sky
Sun
Which is our home planet?
Earth
Which planet besides the Earth has evidence of erosion by running water?
Which of the following is a small celestial body revolving around a planet?
Rotation
Satellites
Comets
Galaxy
Which planet is the jewel of the sky?
Uranus
Which is the largest planet in the solar system?
Neptune
What speed is needed for a gas molecule to escape from planet?
Orbital speed
Solar wind speed
Speed of light
Escape velocity
Which planet is known as the Earth's twin?
