Explanatory text about water

Hello, everyone, my name is water. My brothers and sisters can be seen in streams, rivers and oceans all over the country. We are the simplest hydroxide, colorless and tasteless. We are liquid at room temperature, freezing at 0℃, boiling at 100℃, and the maximum density is at 4℃.

We are of great use. We can turn into countless raindrops from the sky, irrigate crops and nourish farmland. Without us, crops and farmland would dry up, not to mention human beings. Human life cannot be separated from us, and our existence brings convenience to human life. We can do many things for human beings: washing vegetables, washing hands, cooking ... animals and plants are the same, and we give them enough "energy" every day.

With the development of science and technology, we are made into ink, drinks, popsicles and other products. Now we use water resources to generate electricity. For example, the Three Gorges Dam is a grand project that uses us to generate electricity, so our use is increasing. Although we Shui people have made so many contributions to mankind, some people are still strangling our brothers and sisters. On the edge of the Yangtze River, the factory directly discharges the waste gas and sewage generated in the production process into the Yangtze River. Humans often throw rubbish into rivers, which makes our appearance dirty. Not only that, some people leave our tap on after using it, which makes us waste a lot. Because human beings have destroyed the environment and resources, they have been punished by nature. The raging flood destroyed houses, and the ruthless tsunami seriously threatened human life. In fact, it is not the ruthlessness of our water family, but the destruction of mankind. So we have nothing to blame.

We are eager to be friends of mankind and protect us. This is not only for us, but also for the better life of mankind.