Nowadays, air pollution is considered as one of the most serious environmental problems. There are many bad effects that air pollution brings to our lives, and we need to have solutions for them. Air pollution is a serious problem because bad air quality can kill people. Chemicals and fine dust in polluted air can enter our body and cause diseases. Children, old people, and outdoor workers are at higher risk. According to a study, air pollution kills three million people a year. One possible solution is to use public transportation, such as bus or subway. This is an effective solution because a large amount of smoke comes from transportation like cars and motorbikes. Another solution is government should build factories far from cities and town. In addition, more trees should be planted around factories to help the air fresher. Air pollution is a serious problem. By reducing the amount of smoke and planting more trees, we can help the environment as well as our future life

Question 1: This app allows you to review lessons by playing games. Question 2: We clean up the beach when it starts to rain. Question 3: Ecotourism provides tourists with opportunities to explore nature

I had a wonderful summer vacation at Vung Tau with my family last year. It took us about 2 hours to go there by car. However, we did not feel tired because we were very excited. Vung Tau beach was very large and beautiful. The waves were quite strong. My sister and I went swimming while my parents stayed on the shore to sunbathe. In the afternoon, my family went for a walk to see the sunset. We also took a lot of photos. After that, we went to a famous local restaurant to have dinner. The food was very tasty but not so expensive. On the next day, my family visited the seafood market to buy some seafood. I also bought some souvenirs for my friends. We returned home after spending 2 days in Vung Tau. Although the trip was short, I felt very happy. Hopefully, we can go back there again in the future.

I had a wonderful summer vacation at Vung Tau with my family last year. It took us about 2 hours to go there by car. However, we did not feel tired because we were very excited. Vung Tau beach was very large and beautiful. The waves were quite strong. My sister and I went swimming while my parents stayed on the shore to sunbathe. In the afternoon, my family went for a walk to see the sunset. We also took a lot of photos. After that, we went to a famous local restaurant to have dinner. The food was very tasty but not so expensive. On the next day, my family visited the seafood market to buy some seafood. I also bought some souvenirs for my friends. We returned home after spending 2 days in Vung Tau. Although the trip was short, I felt very happy. Hopefully, we can go back there again in the future

   As we all know, there are many great scientist around the world creating great invention everyday. These invention makes our life much easier and more interesting. Talking about invention ,have you ever heard of Thomas Edison. I think that all of us must know himm after all he is the father of light bulbs. Long ago, before the light bulb appeared, we people can't work late because it is dark so we can't see nothing. We had to work hard before sunset. But later on, they invented oil lamp, this helped bring the light to Earth, but this lamp is very dangerous. In 1879, Thomas Edison invented the light bulb. This was the greatest invention in the world. Now people can read books and do works in the evening. Thanks to Edison, our life is easier