tsir wrote in message <6d0gnt$aeb$1 at medousa.forthnet.gr>...
>while consume oxygen and produce carbon dioxide mainly during the night
And therefore You should never have plants in Your Bedroom
>Kirk Newman wrote in message <6cvhdr$d5s2 at theusc.csd.sc.edu>...
>>I always thought plants used carbondioxide
>>and released oxygen. Recently, I was told
>>they also use oxygen. If the statement is true,
>>what do they use oxygen for?