The Importance of Hydrosphere

                         Earth`s hydrosphere have 97% salt water and the remaining 3% is freshwater.Water is important and it is essential to life without it human will die in a week, in addition human body is mostly water.Water also affects the weather,like weather condition such as the drought brought by El Niño and long rain season caused by La Niño. As far as we know , the Earth is the only that able to support life and it has a right distance from the sun that suitable life to exist. Earth is often called as "Blue Planet" because most of it covered in water. This water is made up of fresh water in rivers and lakes, salt water of the oceans and estuaries, groundwater and water vapor, together all this bodies of water are called the HYDROSPHERE
                         It is important  because water is humans daily need in a number of ways. We can use it in drinking and also in washing,cleaning,and bathing. Water relate to chemistry that help to dissolve substances, oceans current also helps to disperse heat .Water helps to regulate temperature on Earth so that they stay within a range that is acceptable for life to exist. Water is a part of living cells.Each cells in a living organism is made up of almost 75% water, and this allows cell to function normally. Without water, cell would not able to carry out their normal function and life could not exist.

                         In the lithosphere, water is an important agent, which means that it helps to break rock down into rock fragments and then soil, fragments may then be transported by water to another place, where they are deposited, This is called erosion and then in the Biosphere, land plants absorb water trough their roots and  then transport to their vascular system to stems and leaves,water is needed in photosynthesis.