Water is a chemical substance. As one it is made of two atom types that are hydrogen in two parts and a singular oxygen atom. They are held in place by strong atomic bonds. Under normal conditions it assumes the liquid state. The other two states that are solid and gaseous are exhibited when the state conditions are altered. Pressure and temperature are the main determiners. Freezing point is reached when the temperature is lowered and the pressure increased. Vice versus is true for the boiling point. Understanding this concept has been important in the design of machines like fridges.
Approximately seventy five percent of the globe is covered by this liquid. The oceans store the highest volumes and the largest is the Pacific. Rivers continually drain into the oceans. They spring from the highland regions. It is also located in the ground as wet lands, bogs and springs. The underground version sis referred to as deep seepage. Humans have found ways of obtaining it from the deep layers of the earth. The other form that is generally in gaseous state is located in the atmosphere. The clouds in their mature stage have the ice pellets.
The hydrological cycle attempts to explain what happens in the atmosphere. The clouds precipitate in form of rain, snow, or hailstones. On reaching the surface, part of it flows on the ground as rivers and the other portion is sucked deep into the soil. Deep ground flow occurs as it drains in the oceans too. Plants undergo what is called transpiration and this drains vapor to the atmosphere. The ocean also experiences a similar loss called evaporation and the moisture alongside that acquired from the plants rises and later forms clouds. The clouds precipitate again and the cycle goes on.
Clean water is very important in preserving the health of both humans and animals. When pathogens are eliminated then the liquid becomes safe for intake. The ocean is saline due to the lack of outlets. Rivers are continually draining into them hence an accumulation of sediments occurs. For the fresh lakes, it is not possible for the sediments to accumulate due to the outlets.
When a source is ambushed with harmful substances, they become dangerous for intake. A disaster is triggered when the polluted sources are consumed and the negative impacts experienced. Aquatic life is also destroyed and hence interference with the ecosystem. The most common types of contaminants include chemical substances that are mostly emanating from the factories. Pesticides and insecticides are the other two examples that might be washed up into a river.
Water borne diseases is one consequent of improper care of the sources. Pathogens present have the capacity of causing harm to the human body. They lead to death outbreaks if proper medication is not provided.
The water borne disease effects of pollution explain why it is important to drink clean water. A process of purification is carried out to make it pathogen free. Boiling has been one of the most common methods employed. Another method is sedimentation but it is not very effective. Desalination is expensive but very effective.
Water is very important. It occupies a very large percentage for both the earth and the human body. Classification of the hot and cold deserts has always been based on it. For the human body, it is needed to help out in many physiological processes.
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