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Who is willing to drink the polluted water? It can cause us to be ill and even to die. We can"t wait for a moment to protect our water sources. The water we use comes from oceans, lakes, rivers or streams. But many of these water sources are getting seriously polluted. Towns and cities are pouring dust into the water. Many people are throwing all kinds of dirty things into the water. Factories are pouring waste material into the water.
Therefore, water sources have become so badly polluted that some of the water is unfit to drink or to use. Now it is high time that we should do something to protect our water environment from being polluted.
Saving Water
Water is the most valuable resource on the earth. Water is the necessity of our life and we must drink it everyday.Now, many people can not drink clear water, because many of them are badly polluted. So, in order to save water, the first thing we should do is reducewater pollution. In addition, we should develop good habits to save water.
For example,turn off the tap after we use. Or we should recycle the water to make it full use. In one word,water is scarce for all of us and we should try our best to save it.
Pollution is becoming more and more serious.
Iook at the batteries all around us. We all know that used batteries are bad for environment. We shouldn"t throw them away. We should recycle them. Look at the plastic bags all around us. We all know plastic bags never rot. When we do shopping, we can use paper bags to store goods instead of plastic bags.
As a matter of fact, we can do a lot to prevent the pollution.Let"s do something to bring pollution under control.
Scientists may have found one answer to the problem of water shortages. It is a new material that collects water from the air. They got their idea from a small beetle that lives in the desert in Africa. The deserts of the Skeleton Coast in Namibia are very dry, but the Namib desert beetle is an expert at surviving in hot and dry conditions. Its shell is covered in small bumps that collect tiny water droplets from the air. The water is enough to keep the beetle alive. Scientists studied the shape and material of the beetles bumps. They want to use what they found out about the beetle to make their own materials that can collect water from the air. This will help people who live in very dry areas.
The scientists believe this new technology could help in many areas of our life. They said it could be very useful for power plants and for the heating and air conditioning in airplanes, cars and trains. One of the scientists, Philseok Kim, said: "Thermal power plants, for example, rely on condensers to quickly convert steam to liquid water. Our design could help speed up that process and even allow for operation at a higher temperature, significantly improving the overall energy efficiency." Another scientist, Joanna Aizenberg, said she was looking forward to the future of getting ideas for new technologies from nature. She said: "Everybody is excited about bio-inspired materials research."
Water is the source of life.We can"t live without water.However,with the increasing population and industrial development,water pollution has become a serious problem.Large amounts of wastewater go into rivers and seas directly without being treated,which can be dangerous to people.Also lots of people pay no attention to saving water in daily life,while in some place water is badly needed.
It"s time for us to take some measures to improve the situation.Factories should treat the wastewater before letting it go into rivers.We can play a positive role in saving water.For example we can reuse the water for wishing rice to wash vegetables and then clean a mop.
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