Question 1
________ is the principal gas in the Venusian atmosphere and also a minor component of the atmospheres of Earth and Mars.
◦ Ozone
◦ Methane
◦ Carbon dioxide
◦ Nitrogen
Question 2
The largest known volcano in the solar system is ________.
◦ Vulcan on Venus
◦ Mauna Loa, Hawaii, on Earth
◦ Solfatara on Jupiter
◦ Olympus Mons on Mars