موضوع انجليزي عن الماء للصف الثامن فقرة  برزنتيشن بحث موضوع ملخص جاهز باللغة الانجليزية  انشاء موضوع انجليزي عن ابدا قصير كيفية كتابة موضوع تعبير باللغة الانجليزية توجيهي قواعد كتابة تعبير  بالانجليزي طريقة سهلة لكتابة تعبير بالانجليزي موضوع تعبير انجليزي يصلح لكل المواضيع كتابة تعبير بالانجليزي عن نفسك وصف تعبير انجليزي يصلح لكل المواضيع موضوع انشاء شامل لكل المواضيع موضوع يصلح لجميع المواضيع موضوع تعبير انجليزي جاهز برجراف ينفع لاى موضوع  موضوع انجليزي عن الماء تعبير عن الماء بالانجليزي قصير وسهل فوائد الماء بالانجليزي قصير بحث عن الماء  عبارات  بالانجليزي طويل فوائد الماء للجسم  قصير وسهل بحث انجليزي عن تلوث الماء  فوائد شرب الماء بالانجليزي اهمية الماء بالانجليزي مترجم تعبير عن الماء بالانجليزي ثالث ثانوي برزنتيشن عن الماء بالانجليزي  برزنتيشن عن الماء بالانجليزي قصير  عن المياه المياه المائية خمس سبع ثمان تسع اربع جمل كلمات كلام مقال علمي مقدمة 

The importance of water for humans and other living beings
Why is water necessary for us humans? Why can she be so dangerous when she is infected? Sometimes friend, sometimes enemy, water is a precious wealth. Discover its different facets in this file.
  
DOSSIERS Is the water still blue?
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Is the water still blue?

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The cycles and properties of water

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Climate: ocean circulation and winds

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Sea levels: Zero level, Mean level and Hydrographic zero

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Fresh water, drinking water and supply

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Water pollution by humans: causes and solutions

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The importance of water for humans and other living beings

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Diseases related to water: cholera, malaria ...

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Leptospirosis in humans: transmission and symptoms

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Duck flea and bather dermatitis

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Salt water: seas and oceans

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How does a lake work?

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Books and websites on water


1/13 Is the water still blue?
2/13 The cycles and properties of water
3/13 Climate: ocean circulation and winds
4/13 Sea levels: Zero level, Mean level and Hydrographic zero
5/13 Freshwater, drinking water and supplies
6/13 Pollution of water by humans: causes and solutions
7/13 The importance of water for humans and other living beings
8/13 Diseases related to water: cholera, malaria ...
9/13 Leptospirosis in humans: transmission and symptoms
10/13 Duck flea and bather dermatitis
11/13 Salt water: seas and oceans
12/13 How does a lake work?
13/13 Books and websites on water

Water is essential to our body. Our body needs it, just like many other living things.
One of the main requirements of earth life is the saving of water. Mammals have solved this problem thanks to the tremendous adaptation of their kidneys and hormonal regulation.

Water is essential to our body. © Rocksweeper, Shutterstock
Water is essential to our body. © Rocksweeper, Shutterstock
Importance of water for our body
Water represents 60% of our weight, or 50 liters for an individual of 70 kg (with differences related to sex, age and body fat). Our 50,000 billion cells contain two-thirds of our body's water. We understand how dependent our body is.
Like air, water is a vital element in life. Water is also the vehicle of the figured elements of the blood, as well as that of certain secretions (tears, digestive juices). It is necessary to maintain the temperature (sweating) and the elimination of soluble waste (urine). We can not go without more than five days. A loss of 10 to 15% can lead to death.
The water in our body is divided into three compartments: intracellular water, extracellular water and blood. The quantity must remain constant and its concentration of ions, mainly Na + and K +.

Drinking is essential for humans.
Drinking is essential for humans.
The entry into water in the body is done by:
the drink (1.5 liter / day)
food (0.9 liters / day)
water produced by the combustion of food (0.6 liter / day)

Water in some foods.
Water in some foods.
The water output of our body is done by:
breathing (0.5 l / day)
perspiration and perspiration: 0.9 l / day (more if sweating due to heat)
urine (1.5 l / day)
stool (0.1l / day)
The use of water by our body is done by:
saliva: about 1 liter per day
gastric juice: between 2 and 2.5 liters per day
bile: 0.5 liter per day
pancreatic juice: 0.7 liters per day
intestinal secretions: about 3 liters a day
blood, which contains about 3 to 4 l of water.

The normal functioning of the body leads to the loss of about 2.6 liters per day. These losses should be balanced by equivalent contributions. Athletes, because of increased sweating during exercise, lose more water.

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