Thursday, April 3, 2014

source of water for humans and benefits

source of water for humans and benefitsCHAPTER IINTRODUCTIONBACKGROUND
Water is a chemical substance that is essential for human life and other living things , and function for life will not be replaced by other compounds . Almost all human activities require water , ranging from self-cleaning ( shower ) , room cleaning homes , preparing food and beverages to other activities .
In living tissue , water is the medium for the various reactions and excretion processes . Water is a component uama in both plants and animals , including humans . The human body is composed of 60-70 % water . Transport of nutrients in the body all in solution with water solvent . Also nutrient - nutrient in the soil can only be absorbed by the roots in the form of the solution . By because it is not possible life can be maintained without water .
Most of the daily water requirements derived from ground water sources and rivers , the water that comes from the PAM ( tap water ) is also the raw material of the river , by the quantity because the rivers for water quality should be maintained .
CHAPTER II
PROBLEMS
The issues to be discussed are as follows :
I. Sources of Water
A. Air Space ( Rain )
B. Water Surface
C. Groundwater
II . usefulness of Water
A. Factors that influence water needs
B. Dehydration and Complications
CHAPTER III
DISCUSSION
I. WATER SOURCE

     
The water that is in the earth 's surface can be derived from various sources based on the location of the source , the water can be divided into the sky water ( rain ) , surface water and groundwater .
A. Air Space ( rain )
Air space or rain water is the main source of water on earth . Although at the time of precipitation is the most clean water , water pollution is likely to experience when in the atmosphere . Pollution that takes place in the atmosphere that can be caused by dust particles , microorganisms , and gases , such as carbon dioxide , nitrogen , and ammonia .
Thus rain water is already up on the surface of the earth is not pure and lead to acidity .
B. Water Surface
Water surface water bodies include some kind of rivers , lakes , ponds , reservoirs , swamps , waterfalls , and surface wells , mostly from rainwater that falls to the surface of the earth . The rainwater will then undergo either by soil pollution , garbage , or other .
Sources of surface water from rivers , ditches, and trenches have similarities , which means flowing and can wash contaminated materials . Source water from swamps , dams and lakes contain natural sources of decay . For example , ganggan decaying plants , fungi , and others . Surface water from the ocean contains high levels of salt so if it is used for drinking water, it must undergo ion - exchange process .
C. Groundwater
Ground water is rain water that falls to the surface of the earth which then undergoes a percolation or absorption into the soil and undergo natural filtration process . The processes that have been experienced by the rain water , in perjalananya underground , making groundwater better and more murnih compared to surface water .

   
Ground water has several advantages compared to other water sources . First , the ground water is usually free of germs and disease and usually do not require purification or purification process . Groundwater supplies are also quite available all year round, even during the dry season . Meanwhile , ground water also has some disadvantages or drawbacks compared to other water sources . Groundwater containing substances in high concentration such as magnesium , calcium , some heavy metals such as iron can cause water hardness . In addition , to suck the water surface in need of a pump or bucket .
II . WATER FOR HUMAN USE
Water is the main component of the body , on average each person has 60 % of your weight . All systems in the body depends on water . One example , water will flush toxins out of vital organs , carries nutrients to body cells and tissues produce moisture for ear , nose and throat .
Water dissolves many kinds of substances in the body need . For example , dissolved oxygen is necessary first , before it can enter the blood vessels that surround arveoli . Similarly Hannya all food substances that can be absorbed if it can dissolve in the liquid covering the intestinal mucous membrane . All biochemical reactions in the human body / animal implemented in the aquatic environment . Water as a solvent , bringing all kinds of food throughout the body and take back all the waste for disposal. Water also participated maintain body temperature , due to the evaporation temperature can be decreased . Water is also used to clean the surface of the eye and smoothed , so that the motion of the eyelid becomes smooth . Briefly in all life functions such as reacting to any stimulus , grow , metabolize , reproduce , water has always played an important role .
Water is necessary for people's daily life looks from places on earth chosen people to live . Settlements are found in the surrounding waters such as rivers . Hence also the cities in the world is situated near the river . Human culture as makhlik also affected by the properties of the water environment , so as to develop the technology in order mendayagunakannya . Water stimulate people to make good containers of water from the soil , bronze , silver , and gold . Water also manstimulir people to make rafts , boats , ships , etc. , in order to utilize water as a transport medium . Nowadays people also use water for power generation , recreation , and other industries .
Of the many mangfaat water , the amount of water that actually consume a small fraction , ie belonging to the provision of drinking water or clean . However, even this group , which really consumed very little . For example, people only drink 2 L per day , as well as the amount of water consumed by animals and plants , just a little. Most are only used as a medium . For example , the water supply will return to the sphere as the water used to wash , then clean the house , the former poured dirt , the former baths , and others . So , it is inconceivable , were it not for available water , whether hygiene can be assured ?
Lack of drinking water in the body can cause dehydration , which is the situation arising due to lack of water so that the body can not function normalnya.setiap when you lose water through urine and sweat respiratory bowel movements , so that the body is functioning normally , the water lost must be replaced by consuming foods and beverages that contain water .
A. Advantages of Water For Human Health
Two approaches to the average water needs in adults are:
- Approach replacement . Average urine output for adults 1.5 L a day . Water also can come out melaului breathing , sweating and bowel movements . Food usually accounts for 20 % of the total number in need , so if you consume 2 liters of water or other drink in a day ( about 8 glasses ) , then the fluid lost will be replaced .
- Daily Recommendations . Instituse Of Medicine advises that men consume 3L ( 13 cups ) and women consume 2.2 liters ( about 9 cups ) of total minimum day. Another way to tell when you have a drink in sufficient quantities is when you are thirsty and produce rare merassa one to two liters of urine is colorless or slightly yellow .
1 . Factors that influence water needs .

  
The amount of water needed purposes depends on the liveliness of the body , weather , health , and if pregnant or breastfeeding .
- Sports : the more exercise , the more water is needed body . Additional 1-2 glasses of water should suffice for short bouts of exercise , but if the old sport requires additional fluid . How much additional fluid is needed depends on how much you sweat after exercise , usually 2-3 glasses of an hour is enough , unless the air is very good panas.lebih when using water with a liquid electrolyte so that the electrolyte lost body fluids can be replaced .
- Environment : hot and humid air can make you sweat and requires additional intake of fluid . Heated indoor air can also make the skin loses moisture so that more urine is wasted .
- The state of health and disease : signs of illness such as fever , Mutah and diarrhea , can cause the body to dehydrate. If there is , then you need to drink more water better when it can replace the electrolytes that out as well . Conditions requiring better when fluid can replace electrolytes lost juga.kondisi content such as urinary infections and urinary duct stones also need more fluids . Other conditions such as heart failure and some types of kidney , liver or adrenal disease can interfere with the excretion of water therefore needs to limit the intake of water .
- Pregnant and breastfeeding : women who are pregnant or breastfeeding need water to stay hydrated . A large amount of fluid is lost during nursing . The Institute of Medicine recommends that pregnant women drink 2.4 L ( 10 cups ) while breastfeeding is recommended that the 3.0 L ( 12.5 cups ) each day .
2 . Dehydration and Complications

     
Lack of water intake your body needs can lead to dehydration . Moderate dehydration ( loss of 1-2 % of body weight ) can reduce energy and make you tired . Common causes of dehydration include strenuous activity , excessive sweating , and diarrhea Mutah .
Signs and symptoms of dehydration are :
- Thirst
- Tired
- Headache
- Dry mouth
- Less urination
- Weak muscles ( sluggish )
- Dizziness
- Head feels light

      
Dehydration was rarely cause complications for lost fluid quickly replaced . Other cases can be life-threatening, especially in individuals who are young or old . In emergency situations the liquid electrolyte can be replaced intravenously .

      
Not good to make sense of thirst as an indicator for drinking . When feel thirsty , dehydration may have occurred . Furthermore , as you get older , the body will not be sensitive to dehydration . Excessive thirst and increased urination can be a serious medical condition .
CHAPTER IVCLOSING
Water is a chemical substance that is essential for human life and other living creatures , his function can not be replaced by anything .
In essence, water sources can be classified into three namely : rain water , surface water and groundwater . Examples of water for human life functions are : water will flush toxins out of vital organs , carries nutrients to body cells and tissues produce moisture on the ear, nose and throat in addition to the water is also used as means of transport , power plants and so forth

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