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26 tháng 1 2018

- Definition: Thermal pollution means a change in the water temperature.

- Causes:

+ Power station are one factor. They use water in the nearby lakes or rivers to cool their equipment, which heats up the water. Then they dump the hot water back into its source.

+ Thermal pollution may also happen due to the discharge of cold water from reservoirs into warm rivers.

- Effects: Most aquatic creatures need a certain temperature to survive. Warmer water has less oxygen in it, and this can harm fish populations. Besides, warmer water can cause harmful algal blooms. This can change the colour of the water like in the first picture and, more seriously, the algea poisons the fish. - Solution: In many places, they build cooling towers like in the second picture to cool down the water from power stations.
1 tháng 2 2018

sao hok viết thành đoan văn lun

15 tháng 1 2018

Environment is an essential part of our life. A clean environment is necessary for a peaceful and healthy life. An environment is the natural surroundings which helps human beings, animals and other living things to grow and develop naturally. But nowadays, our environment is disturbing in many different ways. Any type of disturbance in the nature’s balance affects the environment totally. It does not only ruin human lives but also affects on all living beings. We can save our environment with the little step taken by everyone on the earth. We should reduce the amount of waste, throwing wastes properly to its place only…and many other simple ways. It is very important to save environment for human existence. When we protect the environment, we are protecting ourselves and our future as well.

16 tháng 1 2018

Nowadays, the environment is seriously polluted. It is high time for us to protect the environment. Firstly, we should put the waste baskets on the streets to prevent the people from throwing trash everywhere. Secondly, a lot of trees should be planted to keep the air cleaner. Finally, by using bicycles or public transports instead of motorbikes or cars helps us reduce air and noisy pollution. Therefore, we can protect the environment by above ways.

23 tháng 1 2018

* Bài này tui tự làm không biết đúng không nha

My neighbourhood is facing 3 types of pollution. Noise pollution ie the most serious, then the air pollution and the last is soil pollution. Noise pollution has a major effect on our lives. Everyday, we have to hear the terrible sound, causing us to feel uncomfortable. So we can get diseases like stess, tititus and hearing loss. The main cause of air pollution is the smg from factories and mean of transport. And soil pollution is cause by people pverused herpicides and pesticides

24 tháng 1 2018

Where you live is a very fresh air, gentle. On each street to plant green trees on the sidewalk. Everybody throws garbage at the right place, there is no spit or spit. But here is a disturbing fact that the river, the river formerly clear, is now contaminated with chilly black water, all due to its factory nearby. I hope everyone can recover this situation quickly and thoroughly.

100% tự làm

8 tháng 1 2019

Nowadays, environmental pollution is a hot issue, causing huge waves in public. There are a lot of scientific studies on this issue. Do you know that the cause of pollution originates from the tasks seeming small in our daily lives such as littering, deforestation, or the direct discharge of smoke from vehicles, factory into the environment without treatment. However, if these actions are repeated many times, gradually, the amount of pollution is increasing and has the opposite impact on our lives. The manifestation of environmental pollution is an increase in the carbon footprint in the air, soil and water, which is a gas that does not sustain life. Environmental pollution is also a direct cause of global warming, leading to a series of phenomena, such as the greenhouse effect, ice caps melting, natural disasters such as droughts, floods, volcanic eruption and so on. The sea level is rising, more and more natural disasters occur, which threaten all species, make some of which be rare or extinct, break the ecological balance on the Earth. Human beings are not exception. We are breathing polluted air, eating unsafe food. In recent years, we have seen a dramatic increase in the number of people suffering from respiratory and digestive diseases. In conclusion, environmental pollution is a matter taking a lot of concern. It is time for us to take action to overcome this current issue, to protect our own lives.

Dịch
Ngày nay, ô nhiễm môi trường là một chủ đề nóng hổi, gây lên làn sóng trong dư luận. Đã có rất nhiều công trình nghiên cứu khoa học về vấn đề này. Bạn biết không, nguyên nhân của ô nhiễm bắt nguồn từ những công việc tưởng chừng như rất nhỏ trong cuộc sống hàng ngày của chúng ta như xả rác bừa bãi, phá rừng làm rẫy, hay tù khói của xe cộ, các xí nghiệp thải trực tiếp qua môi trường mà không được xử lí. Tuy nhiên nếu những hành động này được lặp đi lặp lại nhiều lần, dần dần, lượng ô nhiễm ngày càng nhiều và tác động ngược lại đến với cuộc sống của chúng ta. Biểu hiện của ô nhiễm môi trường chính là sự tăng lên vè nồng độ carbon trong không khí, đất và nước, đây là chất khí không duy trì sự sống. Ô nhiễm môi trường còn là nguyên nhân trực tiếp dẫn đến sự nóng lên toàn cầu, dẫn đến hàng loạt hiện tượng như hiệu ứng nhà kính, băng tan hai cực, các thảm họa tự nhiên như hạn hán, lũ lụt, phun trào núi lửa,... Mực nước biển ngày càng dâng cao, ngày càng nhiều các thảm họa tự nhiên xuất hiện đã đe dọa đến tất cả các loài sinh vật, khiến một số loài trở nên khan hiếm hay thậm chí là tiệt chủng, gây ra sự mất cân bằng sinh thái trên trái đất. Con người cũng không ngoại lệ. Chúng ta đang hít phải không khí ô nhiễm, ăn những thực phẩm chưa đảm bảo chất lượng. Những năm gần đây, chúng ta chứng kiến con số tăng lên đáng kể những người mắc phải các căn bệnh liên quan đến hệ hô hấp, tiêu hóa. Nói tóm lại, ô nhiễm môi trường đang là vấn đề đáng lo ngại. Đã đến lúc chúng ta phải bắt tay hành động khắc phục hiện trạng này, bảo vệ cuộc sống của chính chúng ta.

8 tháng 1 2019

In recent years, the mass media have been reporting so much on environmental issues, attracting a great deal of attention from the public. In Vietnam, the most recently representative event is the mass death of fish from Ha Tinh province to Quang Tri province, causing huge damage to the government till hundreds of billion Dong, affecting the lives of inhabitants here. Not only Vietnam, some other countries in the region and in the world also suffer from severe environmental pollution. For example, in Beijing, China, the amount of air pollution is in excess of the permitted level, most of people here have to live with respiratory diseases. To overcome this current issue, the governments of many governments have the different measures to minimize the amount of pollution emitted to the environment. Many activities have been encouraged such as recycling, reusing, reforestation, waste collection, using alternative energy and so on. There have been a number of global campaigns to raise awareness of citizens like the Earth Hour with slogans, posters such as 'Protect our Earth', 'Green Environment', etc. In Vietnam, the government has also passed many laws fining heavily the organizations and individuals. Step by step, we are trying our best to protect the environment, turning the Earth into a wonderful place to live. Hope that in the future, the environmental pollution will no longer be a concern.

Dịch
Những năm gần đây, các phương tiện truyền thông đại chúng rầm rộ đưa tin về các vấn đề ô nhiễm môi trường, thu hút sự quan tâm lớn của cộng đồng. Ở Việt Nam, sự kiện tiêu biểu gần đây nhất là vụ cá chết hàng loạt từ cá tỉnh Hà Tĩnh cho đến Quảng Trị, làm thiệt hại của nhà nước hàng trăm tỉ đồng, ảnh hưởng đến đời sống sinh hoạt của người dân nơi đây. Không chỉ Việt Nam, một số nước khác trong khu vực và trên thế giới cũng chịu ảnh hưởng của ô nhiễm môi trường một cách nghiêm trọng. Ví dụ như ở Bắc Kinh, Trung Quốc, lượng ô nhiễm trong không khí đã vượt quá mức cho phép, đa số người dân phải sống chung với các bệnh liên quan đến hô hấp. Để khắc phục thực trạng này, chính phủ của các nước đã có những biện pháp khác nhau để giảm đến mức tối đa lượng ô nhiễm thải ra môi trường. Nhiều hoạt động được khuyến khích như tái chế, tái sử dụng, tái trồng rừng, thu gom rác thải, sử dụng năng lượng thay thế,...Đã có rất nhiều những chiến dịch mang tính chất toàn cầu nhằm nâng cao nhận thức của công dân như sự kiện Giờ Trái Đất với các tấm khẩu hiệu, áp phích như ‘Bảo vệ Trái Đất’, ‘Môi trường xanh’,... Ở Việt Nam, chính phủ cũng thông qua nhiều chế tài xử phạt nặng các doanh nghiệp, cá nhân có hành động phá hoại môi trường như săn bắn bất hợp pháp, vứt rác bừa bãi, phá rừng... Từng bước, chúng ta đang cố gắng hết sức bảo vệ môi trường trong lành, biến Trái đất thành một nơi tuyệt vời để sống. Hi vọng rằng trong tương lai gần, ô nhiễm môi trường sẽ không còn là vấn đề đáng lo ngại nữa.

6 tháng 3 2019
The pollution of water is an important problem today. Today, throughout moutain to city, almost rivers are not pure. They are dark, black, and foul and make the bad trouble with our lives. We need fresh air, we need fresh water. We need water to drink, to bath, to clean and wash. We very need water. Land like Dad, and water like Mom. Water smooth, transparent, clear, and it has 70% of all our body. We can not don't need water. Water help tree grow. Water can refresh and clear all things. But today, we only have water from water city company. The water we drink, is not fresh. And it must fire to hot as 100 degree. And then, we make it cool, so we can drink. In once upon a time, all rivers are fresh. And we can swim in that, it's very funny. In that rivers, we have fishes, too, and shrimp, and very much see animals. But now, with our rivers, there have no fish, or shrimp. Because there're too dirty. If we want to make our rivers revival, we need learn the way to not pour the pollution things to our rivers. It's very difficult, I know. But if we truely want our rivers have the blue, not black, or grown color, we need do all things from the begin. Nowadays, we have many polluted company, we always try to make pure water. And to have pure water, we must pay money. It's not cheap. And the last thing I want to talk with you, that we need to learn the way to not pour the dirty things to rivers. And we need save our water
6 tháng 3 2019

cảm ơn bạn nhiều nha ^_^ !!!

23 tháng 4 2018

Topic: ENVIRONMENTThe environment is everything in the world, everything around us. There are four kinds of environment: water, air, soil and creature. The environtment is very important for our life, our health and our future. If you want to have a good health, you must live in a good environment. Countryside is the best example because there aren’t many factories and there are many trees in the countryside so the air is very fresh. It makes you feel comfortable and healthy.But today, the environment is the ho'est problem in the world because it is polluted by people who live in it- the main reason which causes the environmental pollu)on. The water becomes dirty and becovered by trash. The factories decant chemistry into stream, river and sea. Fishes, sea plants are died and +oat on the water surface. Many trees in the forest are cut down to make furnitures. Peoplethrow trash onto the water, the street or in the park. In addi)on, the weather is very hot and don’t have any rain in the long )me. There are many other reasons which make environmental pollu)on.Environmental pollu)on is not good for your healthy. It is the cause which makes illness and cancer like respiratory disease, lung cancer,etc… and you may die soon. So people have to do everything that is possible to reduce the pollu)on, protect the environment. Reusing, reducing and recycling arethe best ways.• When you buy some food in the market, the sellers usually give you plas)c bags to put the food in. Then, when you come home, you take the food out and throw the plas)c bags away. You know, the plas)c bags are di2cult to be burned. So now, please don’t do that, you can wash and use them for the next )me. It’s reusing.• Trees are very useful. They give us the oxygen and make the air clean. But everyyear, many trees are cut down illegally. We should avoid this situa)on. Reducing your family’s domes)c waste is a good idea and I think it’s necessary to do that. Because the waste is very dirty and solving waste is always the ho'est problem that always need the solu)ons.• The last, you can recycle the paper, cans, )ns,ect… which are used. By doing that, you can ear money and protect the environment.The environment is important for our life so we have to protect it. We should solve the environmental pollu)on together. Protect the environment, protect our life.

21 tháng 6 2018

A story: Turtle and rabbit

On a beautiful autumn morning, on one side of the river a forest with a turtle is practically running. Rabbit passing by, see that laughing turtle:
- Sluggishly like slug but also run!
Play rabbit said so, Tortoise sad but calm reply:
- Do not mock me. You try to compare a wrong?
Rabbits with bearded beard:
- You dare run with me? Be right. I will take you half way. Come on!
Turtles do not say half a word. He knew he was slow. People have said: "Slow as a turtle". So, when the order was issued, the turtle moved step by step, rabbits chuckled. He thought: "It is necessary to hurry, wait for the Tortoise to reach the end, I just fired a win is already won." Thought that, rabbits we go to chase butterfly, cut flowers, look at heaven and earth as nothing happens.
Suddenly thought of the contest, looked up to see the Turtle to the destination, Rabbit hurry yellow gold tripod trip four feet away as a streak shot. But not anymore, Turtle has come to the destination long.
The story of "Turtles and Rabbits" has left us with a profound lesson: no self-esteem, no bragging boast, knowing who you know, persistence in everything will succeed.

21 tháng 6 2018

Pho is one of the Vietnamese traditional food. The most delicious and typical brand of Pho in Vietnam is Ha Noi Pho with wonderful flavor. Pho is made from rice noodles, beef or chicken and other spices. Pho is a noodle soup; therefore, it’s better when being added with beansprout. Eating Pho with family not only reflects Vietnamese tradition but also creates cozy atmosphere. At weekends, my friends and I usually go to a cafeteria to enjoy Pho because Pho is served at many restaurants in Vietnam. There are two main kind of Pho: noodle soup with beef and sliced chicken, both of them are delicious and high nutrients. Pho is favorite food of almost Vietnamese and often served as breakfast. Moreover, Pho is popular in international market for its pleasant taste and reasonable price. Foreign tourists visit Vietnam and they really like the taste of Pho here. I am very proud of it. In near future, I hope Pho will be more famous in other countries so that foreigners can enjoy this cuisine and understand about Vietnamese culture.

20 tháng 2 2020

Water pollution has become a continuous increasing problem on the earth which is affecting the human and animal lives in all aspects. Water pollution is the contamination of drinking water by the poisonous pollutants generated by the human activities. The whole water is getting polluted through many sources such as urban runoff, agricultural, industrial, sedimentary, leeching from landfills, animal wastes, and other human activities. All the pollutants are very harmful to the environment. Human population is increasing day by day and thus their needs and competition leading pollution to the top level. We need to follow some drastic changes in our habits to save the earth water as well as continue the possibility of life here.