Water is one of our most precious resources; put it simply, without water there would be no life. Unfortunately, many of us seem to have (61) _____ this fact, and as a result the world is (62) _____ the danger of running (63) _____ water. The actual (64) _____ of water on earth has changed little since the time of dinosaurs. The problem has been (65) _____ by people’s misuse of our water supply. This not only means that we have polluted our rivers and seas, but also that we are (66) _____ a great deal of this precious resource. Unfortunately the destruction of the rain forests has (67) _____ this problem worse since much of the rain that falls is lost because it runs off into the sea. The population of the earth is increasing daily, so it is vital that we (68) _____ a solution to this problem before it is too late. The first step is to educate people, especially by reminding them of the (69) _____ of water. For most of us it is available whenever we require it, whether to bathe in or to drink, so we seldom bother to think about it. Whatever methods we decide to use, we must comprehend the worth of water and (70) _____ we can conserve it.