Why is Water Essential for Life on Earth? Essay

Without water, there is no life on the planet. Life is almost certainly born from water. From pregnancy to childbirth, the child is in a mild condition in the water (amniotic fluid) bag, protecting the fetus from physical harm and buffering. The birth of a child is predicted by "broken water" of a child breast-fed with 90% of water (Nagin, 2008).

Pure water is colorless transparent, tasteless, tasteless liquid. It can exist in three physical states, solid (ice), liquid and gas (steam). The chemical formula of water is H 2 O and is interpreted as a ratio of 2 hydrogen atoms and oxygen in a ratio of 2: 1.

The following figure shows the calculation formula of water using symbols. (Iowa State University) ... further display

Water is essential for the survival of plants and animals. Rainfall is the cause of the growth of weeds and trees, which helps protect the earth's surface from erosion of the soil by wind and rain. Wild lawn is the natural source of animal feed. The lawn is also used for a variety of purposes, such as the roof of the roof and the weave. Rainfall is also important for dry crop production; it is the main source of food and crops such as tobacco, cotton, and insects.

Water has unique physical and chemical properties, many of which are important in biology. The organisms and finished products contain a very small amount of soil water. The human brain is 85% moisture. Clean and fresh drinking water is essential for human and other forms of life. For normal functioning, adults require an average of 2-3 liters of water a day. This amount depends on the level of activity, body temperature, humidity, physical condition, whether it is appropriate, and whether there is a sick process. Most of the water is consumed by food and the remaining water is considered directly pure water. Water is an important solvent for dissolving many substances. It plays an important role in metabolism (VEFPSA, 2009)

In and out of the sea and land of water to the Earth 's atmosphere is a very important process. This process is called water circulation and is essential to the life on the planet. In this activity you will build two different water cycle process models and then decide which model will help you understand the process. The explanation of the first model is in the water circulation architectural model. To build this model, your team will need 2 gallon cans, stones, masking tape and food coloring. After building the model, observe and see what happens when warming with a sunny window frame. Record observations in scientific journals and notes. In your own words, please explain how to explain what models will take in the water circulation.

As sea water covers 71% of the earth's surface, the earth is the only planet known to have stable liquid on its surface, and liquid water is indispensable for all known life forms on Earth is. The origin of the earth's water is not yet known, but the presence of water on the surface of the earth is the product of its atmospheric pressure and the stable orbit of the area around the sun that can live. The main methods currently used for verification are absorption spectroscopy and geochemistry. These techniques have been proven to be effective for atmospheric water vapor and ice. However, using current astronomical spectroscopy, it is much more difficult to detect liquid water on the planet on Earth, especially in the case of groundwater. Therefore, astronomers, astrophysics, and planetary scientists use liquid-lived areas, gravity theory and tidal theory, planetary differences, and radiation measurement models to determine the possibility of liquid water.