When I first saw the reservoir, it was still small, and the huge reservoir amazed me. A concept naturally comes to my mind: water is inexhaustible.
Indeed, in people's impression, water is everywhere, serving people's production and life. It is the blood of industry, the lifeblood of agriculture, and the most indispensable assistant in life ... In short, water is the precious wealth on which we live, and according to the survey, there is also a name called "water polo" on the earth where we live. As the name implies, 70.8% of our earth is water. But there is so much water, of which seawater accounts for 97%, land surface water accounts for 0.0 17%, and half is in inland seas and salt lakes. The fundamental sources of fresh water are rain and dew. Every 49 years, only 65,438+005,000 cubic meters of water falls on land, of which 2/3 is evaporated by plants or the ground, and only 65,438+0/3, that is, 37,500 cubic meters of water is available for human use.
Is this little water enough for us to drink? The answer is no.
In that case, why do people always turn a blind eye to the "crash" of tap water and don't want to turn off the tap? Why do some people throw garbage into rivers, oceans and lakes, but they don't realize how much water pollution it has? Why do people not feel sorry when industrial sewage flows into rivers, lakes and seas and the original clear water becomes sewage? Why and when? ...
In fact, human beings are now committing chronic suicide. They pollute and waste water resources without complaint. However, how precious water is! If we don't cherish water resources now, the water in the future will be as precious as oil.
Therefore, we should recycle water. Using natural seawater desalinator to desalinate seawater is environmentally friendly and saves money, which can kill two birds with one stone. The water source problem has been solved. How to use it? People should invent more water-saving products, such as "electrolyzed water molecular washing machine", which uses the principle of electrolyzed water molecules to make oxygen atoms in water molecules absorb stolen goods in clothes. Electrolyzed hydrogen atoms can be used as fuel for environmentally-friendly cars, which does not damage clothing fibers, provides power and energy for cars, and is also beneficial to environmental protection. Why not?
Although there are many water-saving products now, the most important thing is to rely on people themselves-not to waste or pollute water resources, in order to better protect water resources.
Ah! Wake up, human! If we don't cherish water resources, the last drop of water spilled on the earth in the future will be our own tears.