WATER

Water is a substance or material or elements that are important to all known forms of life so far on Earth, [1] [2] [3] but not on another planet. [4] Water covers nearly 71% of the earth's surface. There are 1.4 trillion cubic kilometers (330 million miles ³) is available on earth. [5] most of the water contained in the sea (salt water) and the layers of ice (in polar and mountain peaks), but also can present as clouds, rain, rivers, fresh water, lakes, water vapor, and sea ice. The water in these objects moving along a water cycle, namely: through evaporation, rain, and the flow of water over the soil surface (runoff, including springs, rivers, estuaries) to the sea. Clean water essential for human life. In many places in the world there is a shortage of water supply. In addition to the earth, large amounts of water are also expected in the north and south poles of Mars, and in the months Europa and Enceladus. Water can be either solid (ice), liquid (water) and gas (water vapor). Water is the only substance found naturally in the earth's surface in the third realization. [6] The management of water resources can be caused by poor water shortage, monopolization and privatization, and even sparked the conflict. [7] Indonesia already has laws regulating water resources since 2004, namely Law No. 7 of 2004 on Water Resources