As you can see, without water, there would be now plant, animal, or human life. Water is something that ties us all together and is part of a life cycle and food chain. Where man can live is decided by where water is. Water transports goods and many businesses and manufacturing sites depend on it. Our food supply and crops depend on water, also.
Water affects the climate of the Earth and changes the surface of the land.
Living things that survive through varying changes in temperature are able to because water can store great amounts of heat. In the United States, each person who lives in a city or on a modern farm requires more than fifty gallons of water a day for personal and household use. I think we forget and take for granted the things that we use each day that require water. Each minute a shower runs, five gallons of water is used. Sprinkling lawns, gardens, flower beds, and operating air-conditioning units and heating systems of many homes, shops, and office buildings are where water is used also.