Composition Home > 国小作文 > 5th grade composition > Diary

The importance and harm of water


Water is precious, no waste can be wasted at a time, we need who cooks rice, laundry needs water, water needs to wash hands... The world's fresh water use has increased. From 1900 to 1980, freshwater consumption increased sixfold. 60% of the world's regions have insufficient water resources. The pollution of water is getting worse. Every year, 450 billion tons of polluted water is discharged into artificial rivers and lakes around the world, and many areas are threatened by diseases due to drinking contaminated water. Water is the source of life, and people and water are inseparable. The water content of adults is about 65% of body weight. 80% of human blood is water, and the daily water consumption per person is 2 to 3 liters. All physiological activities of the human body, such as body temperature regulation, nutrient delivery, waste excretion, etc., require water to complete. If the body reduces water by 10%, it will cause disease, and 20% to 22% of water will die. People in life can't live without water. Who is necessary for life, one day is indispensable. However, the polluted water is extremely harmful to us humans. Water is indispensable for one day, but we must pay attention to the sanitation of this water. Its harm to humans is multifaceted. When the human body is contaminated by chemical toxic substances, it can cause acute or chronic poisoning. Also. Water pollution can also cause infectious diseases of water media, such as human and animal waste and other biological pollution, can cause bacterial intestinal infectious diseases, such as typhoid fever, cholera and so on. We humans should protect water resources and cherish every bit of water. Isn’t the ocean of oceans a little bit of water merged? We can't underestimate it. Protecting water resources, preventing diseases from entering the mouth, everyone will do their part, and our water environment will certainly be better.

recommended article

popular articles