Temperatures on Mars are generally cooler than on Earth, but they are warm enough to potentially support life. The atmosphere of
Mars is much thinner than Earth's and is composed mainly of carbon dioxide, nitrogen, and argon. Which of the following is a reason that Mars' atmosphere cannot support human life? A.
The atmosphere on Mars cannot support human life because it does not contain abundant oxygen.
B.
The atmosphere on Mars cannot support human life because it contains carbon dioxide.
C.
The atmosphere on Mars cannot support human life because it does not contain abundant carbon monoxide.
D.
The atmosphere on Mars cannot support human life because it contains argon
