Water

Everybody needs fresh water. [blank] water people, animals & plants cannot live. Although a few plants and animals can make do with saltwater, all humans need a constant supply of freshwater to stay [blank] & healthy. Of the total supply of water on the Earth, only about 3% of it is fresh, most of that is stored as ice snow at the poles, or is so [blank] under the surface of the Earth that we cannot get to it. Despite so much of the water is out of reach, we still have a million cubic miles of it that we [blank] use. That's about 4, 300,000 cubic kilometers of freshwater to share out between most of the plants, animals' people on the planet.