Is the air on Mars good to breathe?
The air on Mars is not good to breathe for people or animals. We need air that has a lot of Oxygen in it, like the air on Earth has. The air on Mars is very thin, it has the same pressure that the air 20 miles up above the ground has on Earth where no people or animals can live. Also, the air on Mars is really cold and dry; a typical temperature during the day on Mars would be 30 degrees below zero even in summer, and a typical temperature at night would be 100 degrees below zero. The air on Mars is mostly Carbon Dioxide, which is the right kind of air for plants though, since they breathe Carbon Dioxide, but because the air is so very cold and so dry, even plants couldn’t live there. Expert: Randel A.