vrybody knows that thr is srious problm of watr pollution on th arth. Ys, watr pollution is incrasing. Look! Th watr in th rivr is gtting dirtir and dirtir. Most of fish in th watr hav did, and w cant swim in th watr. My grandfathr says, whn h was vry littl, th watr in th rivr was vry clan. H oftn swam in th rivr with his frinds. That was bfor, but now w cant s such clan rivrs. Lts protct th watr from pollution, bcaus w cant liv without watr. Th watr is rally important to us all.