From: alain245@videotron.ca   
      
   On Apr/25/2021 at 18:18, JF Mezei wrote :   
   > Is Photosynthesis the only known process that takes gaseous carbon and   
   > creates solid carbon?   
   >   
   > I can understand Sabatier helping SpaceX refuel rockets with methane and   
   > a bit of o2 as a side effect to help humans surfive.   
   >   
   > But longer term, if there is to be a colony on Mars where breathable OI2   
   > is primary requirement, wouldn't photosynthesis end up being the more   
   > efficient process to create O2 from CO2 ?  Is there a way to   
   > artificially make this chemical reaction happen or are plants the only   
   > known way to do this? (with the need for space, water, care and   
   > relatively slow production).   
      
   There are other processes to make O2 from CO2, but the nice thing about   
   photosynthesis is that you can have a by-product that is generated   
   through the process, food.   
      
      
   Alain Fournier   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)