Almost everyone knows that plants and trees convert carbon dioxide into oxygen. We all need oxygen to breathe and survive. Every plant carries out this conversion. Some of them do this more effectively. NASA is always busy doing something.
Not sure I like these but they are interesting, unicorn pumpkin tutorial. Des citrouilles licornes pour Halloween, trop génial et super chou ! :-) Halloween Pumpkin Unicorn, so awesome and super cute ! DIY now !