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1.Walk or ride your bike whenever possible. One of the best things you can do to help stop pollution is to stop using your car for short trips. If the weather is nice and you don’t have too far to go, consider walking or riding your bike. You will help reduce air pollution and you will get some exercise and fresh air in the process
2.Use public transportation. Riding the bus, train, or subway is another great way to avoid using your personal vehicle and reduce carbon emissions. If you have access to good public transportation where you live, take advantage of it. Since you won’t have to worry about keeping your eyes on the road, you can take advantage of the time to read, catch up on news, or just relax.
The Khmer have managed to preserve their own language and writings. They usually live with the Kinh and Hoa in "soc" (villages), and "phum" or "ap" (hamlets). The houses are simply built with thatched or tiled roofs. Major Khmer festivals include "Chon Cho Nam Tho May" (New Year Festival), Buddha's Birthday, "Don Ta" (Forgive the Crimes of the Dead), and "Ooc Om Bok" (Moon Worship).
H’mong people are an important member in the community of ethnic minorities in Vietnam with about one million people, ranked 8th among 54 Vietnamese ethnics. They often occupy the upland areas, from 800-1500m above the sea level, mostly in the Northwest and a few in the central highland of Vietnam. You can easily spot them in Ha Giang, Lao Cai, Sa Pa, Lai Chau, Son La and several other provinces.
Their language family is Hmon-Mien, yet the language is a non-written one. Hmong people have a very extraordinary culture that is still vividly seen today. The best time to visit the Hmong is during the Lunar New Year in late January or early February - when they would celebrate the 3-day Tet festival. During the festival, they often cheerfully blow “khèn” (their special woodwind instrument), play swings and other traditional games and sing in the large yard around the village.
Stealing Wife is another special H’mong’s custom: when a man loves a woman, he must ‘steal’ her in the darkest night and imprison her without food for 2-3 days; if the woman accepts to marry him, he will come to her family to ask for her parents’ permission.
H’mong people believe that they have a common ancestor so they greatly value unity in their community. Several families gather into a cluster and has a leader responsible for common works. As for costumes, H’mong people usually wear their self-woven clothes made by linen, decorated with unique technique to express their strong ethnic characteristics. They drink corn, rice wine, smoking cigarettes using plow. Meanwhile, if you are a guest who is invited a self-loaded plow by a H’mong, you should take it as a friendly fondness.
Nhớ tick cho mk nha 
giup mik vs
Kinh ethnic group has a population about 65.8 million people. At present, the Kinh's costumes resemble western clothing. They worship their ancestors and also practice Buddhism, Confucianism, Taoism or Christianity to various extents.
Rice cultivation in submerged fields is the main economic activity of the Kinh. They also erect dykes and dig canals which help in the growing of wet rice, gardening, and sericulture. They also raise cattle and poultry. Pottery production has been very developed for a long time.
The Kinh have a rich collection of literature which includes old tales, folk ballads, and proverbs. The written literature takes many forms such as poems, writings, books, and edicts. Song, music, sculpture, painting, dance and performance are also well developed and popular.