thanks Lurch, i have heard that our water comes from comets but was not sure , of course this leads to the obvious question where do comets get there water from ? hydrogen is plentifull but what about oxygen and where and how are they put together to form water ?
i think if "dirty" lettuce was any harm we would all be dead by now , i found a worm in my lettuce today and counted myself lucky , i put him in the compost where he will do some good work !