it is a colourless gas as are most gases
There is no oxygen.
you cant live without oxygen
Oxygen in its pure, gasseous form, as usually encountered on Earth is an invisible gas and cannot be seen.
you can't oxygen is an element, it cant be made by mixing anything other then oxygen
the majority of oxygen is found in water therefore you cannot breathe the oxygen in water
there habit is that it live were it cant be seen
There is no oxygen on the moon required for combustion
because without oxygen you cant breathe.
they can, i have seen them do it.
Blind
Because too much oxygen is harmful to the environment.
Because there is no oxygen on the moon. A fire needs oxygen in order to burn.