When travelling overseas, do you buy water in plastic bottles or take your chances with tap water? Imagine you are wandering about on a Thai island or (26) _______ the ruins of Angkor. It's hot so you grab a bottle of water from a local vendor. It's the safe thing to do, right? The bottle is (27) _______ and the label says "pure water". But maybe what's inside is not so (28) _______. Would you still be drinking it if you knew that more than 90 percent of all bottled water sold around the world (29) _______ microplastics?