Question

Other planets have an atmosphere, but Earth's is unique because it has large amounts of _____.

nitrogen
oxygen
water vapor

Answer 1

Other planets have an atmosphere, but Earth's is unique because it has large amounts of oxygen.

Answer 2

Earth has large amount of oxygen, which allows life to thrive on it. Other planets have significantly lower amounts of oxygen. Others have high concentration of hydrogen, and carbon dixoxide. They also have a very thin atmosphere, and thus very unregulated temperatures,