Compléter TASK 2Version en ligne TASK 2 par Cindy Carolina Jimenez 1 frozen Gravity support astrtonomical same nitrogen 1 . Most people think Mars can human life . 2 . We measure distances in space using units . 3 . The two planets aren't the colour . 4 . Most of the water on Mars is probably 5 . The air on Earth is mostly made up of 6 . on Mars is just over one third as strong as on Ear t