Questions with the keyword 'oxegen'

• is there 0.0 oxegen in the moon by __a.i.d.e.n_ to Simon, Julia, Delma, Andrew, Alex Comments: (No comments so far )
• if we planted trees on another planet could they produce oxegen so we can live there? by cjay_is_not_here to Simon, Julia, Delma, Andrew, Alex Comments: (so far, 2s comments )