【正文】
Transforming Mars 1 2 3 4 5 6 7 8 9 Earth VS Mars Form (1) Earth Mars Length of one day 24 hours Length of one year 365 days Is there water? Yes There is________, but there is_____________. Main gases in atmosphere Nitrogen 78%, oxygen 21% Average temperature 15176。 C Gravity: weight of a 60 kg person 60kg About __________ Average distance from the Sun 150 million km __________ km hours 687 earth days, 668 Martian days no water a lot of ice