A) Extreme temperatures B) Liquid water C) High levels of carbon dioxide D) Lack of atmosphere
A) Hydrogen B) Oxygen C) Nitrogen D) Carbon Dioxide
A) Stratosphere B) Troposphere C) Mesosphere D) Thermosphere
A) Lunar phases B) Solar flares C) Magnetic reversals D) Plate tectonics
A) Meteor showers B) Volcano eruptions C) Ocean currents D) Sea level rise
A) The Kuiper belt B) The outer planets C) The habitable zone D) The asteroid belt
A) Nuclear energy B) Wind energy C) The Sun D) Geothermal energy
A) Venus B) Mars C) The Moon D) Phobos
A) Dermal radiation B) Lunar cycles C) Greenhouse gases D) Increased solar energy |