Science 07 : Water

Everyone knows this, right? Water is one of an important source of life in the world. 70% of human body is actually water. You can't survive without drinking water everyday, and lessing drinking water could make some problems for you, like dehydration or even death(not drinking water for more than 2 days). Top of mountain have clean and cold water. It is also as a water source. Not every mountain, some contains hot brimstone contained sulfur and stay at the water for a short time is healthy. If you long time in the sulfur water, you will pass out. Water in chemistry writed as H2O, a compound between 2 elements; 1 Hydrogen and 2 Oxygen. Water is also an universal solvent. But now, most of the water in the world now are polluted. Polluted water could bring diseases, even cancer or death. The worst history of water pollution is in Minamata bay, Japan. A factory dispose a dangerous waste known as Mercury. It kills thousands of people. Not only mercury can polluting water, there is also radioactive waste, iron, Fluoride, black tin, nitrate, garbage, and anything else. Also, the stock of clean water is decreased because the forests and trees are decreased. Why? Trees could store waters. Sun's heat make the water from trees evaporating (called Transpiration) and condensation happen in the sky and forming a cloud. The cloud getting heavier and then raining is happening. So, what happen if there is no trees? The answer is like a Sahara dessert and like Atacama dessert. Atacama is known as the driest place in the world because rain is rarely happen. So, do you want your place hot like desserts? If you don't want, plant some trees and don't waste water and polluting water. Because..."WATER IS ONE OF OUR IMPORTANT SOURCE OF LIFE"