Um, so what I'm going to do from the outset is I'm going to put you to work. But so don't worry, it's not a lot from you. I've just have two questions that I'm looking to get an answer from.So the first of these is I'm going to ask so those of you who think you could describe to someone what groundwater is, could I just get you to raise your hand. some uh so the other one might be uh if you turn the water on at the tap do you ever think about where that water comes from. So a little bit more.So why is it th ...