Water Conservation Publicity Knowle

Water Conservation Publicity Knowledge
1. What is water?
Humans have long known that water is the most common liquid in nature. Water is colorless, tasteless, odorless and transparent. In 1784, British scientist Cavendish used experiments to prove that water is not an element, but a product of the combination of two gases. In 1809, French chemist Galluzac determined that one volume of oxygen and two volumes of hydrogenation combined to produce two volumes of water vapor. Later scientists worked out the formula for water: hydrogen peroxide. To talk about
_2. The Important Role of Water
Without water, there is no life, no life, no human beings. Without water, there is no industry, agriculture and modernization. Water is the lifeblood of agriculture, the blood of industry, water and cultural life are closely related; water is the foundation of urban development and development; water is the foundation of urban Internation. In a word, there is no human society today without water. To talk about
3. How much water is there on the earth?
The total reserves of water on the earth are 14 billion cubic meters, of which freshwater accounts for only 1/40, or about 350 million cubic meters, and nearly 70% of the freshwater reserves are polar glaciers. At present, the freshwater resources available in lakes, rivers and underground areas, which are most closely related to human beings, account for only 1/300 of the total freshwater resources, about 100 trillion cubic meters, less than one-tenth of the total global water reserves. To talk about
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An adult needs 2500 milliliters of water a day, equivalent to the amount of water in a bottle of ordinary hot water bottle, in order to maintain the body's water balance and ensure the normal physiological metabolism. To talk about
What are the effects of 1 ton of water?
It can produce 5 kilograms of paper, 100 degrees of electricity, 95 meters of dyed cloth, 0.15 tons of steel, 0.25 tons of fertilizer, 1122 soaps, 100 pairs of rubber shoes and an average industrial output value of 35 yuan. To talk about
6. Don't look down on dripping.
According to the measurement, "drop" can collect 3.6 kilograms of water in one hour, and 2.6 tons of water can be collected in one month, which can provide a person's life for a month. Therefore, water saving should start from the drip by drip.