Water is a natural resource that every human being on Earth can use to satisfy his or her needs. According to the well known facts, a perfectly healthy man or woman can live from 3 to 5 days without water. But there are some requirements that should be fulfilled. First of all, the person must be absolutely healthy. Second of all, he or she must be located in perfect conditions. This means that the temperature shouldn’t be high or low. But this is just a theory – there’s no need to practice it!
What are the functions of water? First of all, water can easily quench the thirst. Besides, it can make us survive, clean or organism and simply recharge our fatigue. To say more, water is known for its revitalizing functions that make our skin look better. According to the recent investigations performed by the scientists, 70% of the human being’s body mass is composed of water. Thus, we can openly state how important this liquid is for us.
Although water is an integral part of our life and health in particular, we lose it every single day. In what way do we do that? We can lose water through bowel movement, perspiration and respiration. For instance, if you’re a fan of regular exercising, you know that the process will start perspiration which is respiration and sweating.
Water is not only important to people and animals, but to plants as well. So, if we look deeper, it’s easy to see that if there was no water to feed the plants, there would be no oxygen for us.
Water also provides us with a great number of multiple benefits. The number one advantage that water brings into our life is its revitalizing function. Our skin dries under the sun and water is always there to revitalize it.
Taking in account the fact that we all live in huge cities where regular stress is something that we all have got used to, it’s no wonder that constant nervous tension makes us age. This is when water also can help through its revitalizing features. Besides that, this precious liquid can rehydrate our body, In our everyday life we like to play games, we work a lot and perspire that usually is the reason behind the body’s dehydration. This, in turn, can cause many problems with health and even might lead to death – in most extreme conditions.
In the process of studying, work and playing, we all get tired. This means that our organism is in need of water to recharge fatigue in order to go on with our everyday activities. It is important to mention that fatigue can be of both – physical and mental nature. Mental fatigues causes extensive sleepiness and decrease of attention of an individual whereas physical fatigue will make the muscles tired and pain. As the result of all these aspects, a human being becomes absolutely sluggish. And finally, water is a precious source for help when the person is in need of detoxification, which is the process of cleansing the bacteria in the body of a human being. On this planet, there is no better helper in the process of detoxification than water! This is definitely the best agent, and, without any doubts, the cheapest.
To make it clear, water is the most important part of our life. We can spend days without food and still be alive. But if we got deprived of water, very soon we would close our eyes forever. Water provides our life with a great variety of advantages. That is why we have to take care of our health and water is the number one tool to make use of in the process!
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Why is Water Essential for Life on Earth? Essay
1263 Words6 Pages
There is no life on earth without water. Life almost certainly originated in water. From conception to birth, a child is natured in a sac of water (amniotic) fluid) which protects and cushions the foetus against physical harm. The birth of a child is heralded by the “breaking of waters” after a child is fed on breast-milk which is 90% water (Nagin, 2008).
Definition of water
Water in its pure form is a clear, colourless, odourless and tasteless liquid. It can exist in three states of matter, namely solid (ice), liquid and gas (vapour). The chemical formula for water is H20 which is interpreted as 2 hydrogen atoms and oxygen in a ratio 2:1.
The diagram below illustrates the formula for water using symbols: (Iowa State University)…show more content…
It is an important element of commercial and industrial development.
Water is essential for the existence of plant and animal life. Rainfall is responsible for the growth of wild grasses and trees which in turn help protect the earth surface from soil erosion emanating from the effects of wind and rainfall action. Wild grasses are a natural source of animal feed. Grasses are also used for different purposes such as thatching roofs and weaving. Rainfall is also critically important for dry-land crop production; which is as major source of food and commercial crops such as tobacco, cotton and pyrethrum.
Properties of water
Water has unique physical and chemical properties many of them significant in biology. A very small amount of the Earth’s water is contained within biological bodies and manufactured products. The human brain is 85 percent water. Clean and fresh drinking water is essential to human and other life forms. The adult body requires an average 2-3 litre of water a day in order to function properly. This amount is dependent on the level of activity, temperature, humidity and the body’s physical state whether fit or unfit and the presence of disease process. Most of the water is ingested in foods and the rest is taken straight as pure water. Water is a vital solvent in which many of the bodies’ solute dissolves. It plays an important role in metabolism (VEFPSA, 2009).
(i) in digestion - by assisting the breakdown of food into