2. air pollution: ô nhiễm không khí

There are many disadvantages of living in a city. But air pollution is the most serious problem. Air pollution comes from the factories and the vehicles. Firstly, there are many factories in a big city, so the amout of smokemake the air extremely poluted. Secondly, there are too many means of transport in the city also makes this problem much wors. Exhaust from cars, motorbike is one of the factors that make the air polluted. In conclusion, air pollution negatively affects people’s health, and it also has a bad influence on the environment.

Environmental pollution is an urgent problem for all humankind. The indiscriminate disposal of garbage in my locality has a great impact on the living environment. But this is a very common phenomenon today, most evident in public places. The phenomenon of littering appears more and more, from studying and working places to famous places. Out on the street, you can easily see people distributing flyers. There would be nothing worth mentioning if they did not distribute it in a rampant, indiscriminate manner, causing the road surface to be filled with garbage paper after a few minutes. There are also many people who go to the street while eating and then throw their shells and boxes on the street. Even the park, which is considered to have a fresh air, helps people to have relaxing moments without avoiding the risk of pollution. It's sad that we sit on the bench and see gum residue stuffed into the slot, scrambling the back of the chair. Visiting the scenic spots, we can see everywhere garbage is inundated. Hoan Kiem Lake, West Lake are floating rubbish dumped by people, thrown down by visitors, especially during Tet holidays. To Lich River has a black surface, stinking stench from trash paper, even the carcasses of animals that unconscious people have thrown. It is hard to believe that that river was once praised:

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