It is rightly said that due to water being available everywhere, it is often taken for granted and loses its true relevance even though it is one of the vital things required for sustaining life on earth. It is to be noted that water is necessary for the survival of not only human beings; rather for the survival of all plants and animal species as well. Apart from knowing the fact that water makes for 70 percent of the human body, we must also know that even if there is a 2 percent reduction in the water content in our body, we will start showing the signs of dehydration.
This dehydration further causes memory loss and results in daytime fatigue in individuals belonging to all age groups.
Water is typically crucial for enabling the successful functioning of all the mechanics of our body.
Water is to human body what petrol is to the engine of a car. In fact all the minute cells and organs which complete the anatomy of human body require a specific amount of water for proper functioning. It is a very well- known fact that our bodies maintain as well as control over- heating through the process of perspiration. This is when the sweat glands present in our skin evaporate water; hence providing us with a cooling effect.
Through the process of perspiration, the blood flowing closer to skin is also cooled down in a cycle which starts in the womb and ends with the death of an individual. Impact of sea level rise. Through the continuous flow of adequate amount of water throughout our systems, the essential components of blood, such as blood plasma, also gets a way of transporting throughout our body.
This circulating blood plasma plays a very pivotal role in buffering the pH level of our body and also helps in the circulation of antibodies to and from the immune system.
Water retention in body also leads to the regulation of osmotic balance, which is necessary for maintaining the proper temperature of our body. Water also serves as an important lubricant by assisting in all processes taking place in our body, such as digestion and breathing.
That is why we should be very careful about what we do with our sources of water. Best Free Essay Examples for Students. Free examples Essay about water. We can write an even better essay for you!
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Please indicate your name. Any additional comments or requests? If water were not transparent, light could not penetrate through cellular protoplasm into chloroplasts to drive photosynthesis in plants, you would be blind because light could not penetrate through the vitreous humor to the retina of your eyes, and light could not penetrate into lakes to allow growth of phytoplankton. Clearly life cannot exist without the amazing properties of water.
A solvent is a substance capable of dissolving another substance solute to form a homogeneous mixture solution at a molecular level. The polar nature of water makes it an excellent solvent especially with other polar compounds such as salts, alcohols, carboxylic compounds and many more. More substances dissolve in water than any other known substance.
The versitility of water as a solvent allows it to serve as the medium of transport for so many materials. This is true both for individual organism and for the biosphere as a whole. The essential transport systems including blood, lymph, and urine are all water based.
Water is the only substance where the liquid state is heavier than the solid state. All other substances the solid form is denser than the liquid form. Since the density of ice is less than that of liquid Walter, ice floats on water. It is very significant that ice expands and floats on water because if lakes and streams froze from the bottom to the top, aquatic life would not even exist, and climate and weather patterns would be altered drastically.
This is an important quality of water because as ice forms it floats on top of the water. It acts to provide a thermal blanket for the rest of the water beneath and all its many life forms. This is important because if water behaved like all other substances, water bodies would freeze from the bottom up and in most cases would never thaw completely during summer. This would have a dramatic cooling effect globally and would impact all life on earth.
We see examples of this all the time. For example, under the summer sun at the beach, sand will increase in temperature to the point where it is too hot to walk on, whereas the water temperature is still cool, even though both are heated by the same amount of solar heat energy. Water has the largest heat capacity of any common substance. This means that water takes more heat energy to raise the temperature of water a given number of degrees than for any other material.
In cooling water gives up more heat than any other material. This property is important globally and individually.
Individually, the high heat capacity buffers organisms from sudden extreme shifts in temperature which would be harmful to it. Globally, the oceans moderate seasonal temperature fluctuations. That is why coastal areas are cooler than inland areas at the same latitude. These differences influence the weather globally. And without weather changes life would be very unbearable. The absorption of huge amounts of solar heat energy by water during the day and the slow release of heat energy during the night is responsible for the moderate climate in the coastal areas.
A wider range of temperatures typically exist inland away from bodies of water. If not for the vast oceans on earth tempering the climate life would not exist. This property combines with the MPIBP property to create the water cycle which supports life on earth. Water has an extraordinarily high heat of vaporization.
On average it takes calories to convert one gram of water into water vapour. A value that is higher than any other common substance. This property is of important significance to animals in regulating body temperature because of the large amount of body heat that is required to evaporate water sweat. Without this property of water, organisms would overheat and die and the climate would be thrown into chaos.
Water has the highest surface tension of any other liquid except Mercury. Surface tension is the attractive force exerted by the molecules below the surface on those at the liquid-air interface. The liquid is restrained from flowing by this inward force. The exceptionally high surface tension of water is due to the hydrogen bonding of water.
Sources of drinking water: The chief sources of potable water are the surface water and ground water. The ground water is drawn by deep tube-wells and water pumps. Water is supplied to the consumers through roadside taps and house connections.
Water has many roles in living organisms and life on earth is impossible without it. It makes up between 60% and 95% of the fresh mass of the organisms. In a water molecule, two hydrogen atoms are joined to an oxygen atom by covalent bonds.
Water’s Important Role Water is the single most abundant molecule in living things. It provides the medium in which most biochemical interactions occur. Some biochemical reactions water is involved in are: cellular respiration, digestion, and photosynthesis. Water is the home for many animals, plants and micro-organisms. Water is often considered to be one of the most important resources our planet has, and rightly so. Although people don’t need to be surrounded by water all the time, we shouldn’t forget that a human being can survive without food for about several weeks, .
In this essay sample you will read about main functions of water and the reasons of why life and health are impossible without it. The author accomplished a proper research so that you could use this essay as a basis for your own. Water is composed of two kinds of gas know as oxygen and hydrogen. We know this when we pass electricity through the water in beaker. Test of Water. We find two kinds of water, such as sweet and saline. The water of seas, oceans and most of the lakes are salty. But water is originally sweet.