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12 tháng 3 2020

Tham khảo:

Perilous pollutants may contain various types of impurities including harmful chemicals, dissolved gases, suspended matters, dissolved minerals, and even microbes. All the contaminants reduce the level of dissolved oxygen in the water and affecting the lives of animals and human beings to a great extent. Dissolved oxygen is the oxygen present in water required by the aquatic system to continue the lives of plants and animals. However biochemical oxygen is the demanded oxygen by the aerobic micro-organisms to oxidize organic matters of wastes. Water pollution is caused by two means, one is natural water pollution ( due to the leaching of rocks, decay of organic matters, decay of dead matters, silting, soil erosion, etc ) and another one is man-made water pollution ( due to the deforestation, set up of industries near large water bodies, high level emission of industrial wastes, domestic sewage, synthetic chemicals, radio-active wastes, fertilizers, insecticides, pesticides etc )

12 tháng 3 2020

Chị lấy bài bên link của em nha! :))

28 tháng 3 2022

k có 5 sao đâu nha bạn.

vs lại việc bạn lên mạng nhờ viết khác gì việc lên mạng chép lại.  Các bài trên đây chỉ mang tính tham khảo nha.

3 tháng 4 2021

1. I think pollution is a serious problem nowadays. Because it causes the air quality to decrease, the water environment is altered, aquatic species do not have a safe habitat leading to mass death, the land becomes barren, the plants are not viable and cannot be used for agricultural activities. 
2. My neighborhood has to face with air pollution, water pollution, soil pollution. 
3. Air pollution is caused by waste from industrial zones, urban areas, air from factory operations in industrial zones, fertilizers used in agriculture, wastewater, aquaculture waste sludge, seafood processing, smoke in means of transport,...
4. Effects of water pollution: People suffer many diseases due to the use of dirty water in their daily activities, causing great losses for production and business industries, aquaculture households, ...
5. Prevent noise pollution: close windows, wear headphones, improve sound insulation of walls, plant trees. 
6. English-speaking countries: United States, Great Britain, Canada, Australia, South Africa, Ireland, New Zealand.

Study well :))

28 tháng 4 2018
Soil pollution is a consequence of human activities that alter ecological factors that cross the ecological boundaries of the communities living in the soil. The land environment is home to human beings and most of the shallow creatures, the foundations for civil, industrial and cultural constructions. Land is a precious resource, people use land resources for agricultural production to ensure food supply for people. But with the pace of population growth and the pace of industrial development and urbanization, the area of ​​arable land is shrinking and land quality deteriorates, the average land area head drops. Parularly in Vietnam, the actual depletion of land resources is very worrying and serious.  What do we need to do to protect the environment? That is the question that every one of us needs to answer. In my opinion, protecting the environment is the responsibility of the whole community. Everyone must have a sense of protection. The green, clean, beautiful environment will make our lives better. From the house to the alley, from the alley to the school etc. The place is also clean and airy, many trees, air will be fresh, health will be guaranteed. That everyone wants. At present, I see my class, our school where the concentration of people, not very clean, garbage also lunged, trees are still less. On the street, there are public trash but few people put garbage in the bin, you do not throw it, making the street scene is not beautiful. To protect the environment, I feel we must always have a sense of environmental protection in parular: Do not throw garbage indiscriminately, do not discharge dirty water into ponds, do house cleaning, alleys, schools, not breaking flowers ... and propaganda for people always have common sense and responsibility for environmental protection.
29 tháng 4 2018

giúp mk water or air thôi nhá bn, 

Làm topic Tiếng Anh 1) Talk about causes and effects of a certain type of ppllution as well as solutions to this problem. ( Ô nhiễm nước, ô nhiễm đất, ô nhiễm không khí, ô nhiễm tiếng ồn, mỗi thứ 1 cái :V ) 2) Talk about natural diasters and ways to prepare for them. 3) Talk about ways of communication now and in the future 4) Talk about the inventions 5) Talk about the roles of science and technology Trả lời câu hỏi :V 1)When does air pollution...
Đọc tiếp

Làm topic Tiếng Anh

1) Talk about causes and effects of a certain type of ppllution as well as solutions to this problem. ( Ô nhiễm nước, ô nhiễm đất, ô nhiễm không khí, ô nhiễm tiếng ồn, mỗi thứ 1 cái :V )

2) Talk about natural diasters and ways to prepare for them.

3) Talk about ways of communication now and in the future

4) Talk about the inventions

5) Talk about the roles of science and technology

Trả lời câu hỏi :V

1)When does air pollution occur??

2)What should people do to reduce air pollution?

3)What is water pollution?

4)What should people do to reduce water pollution?

5)What have caused air pollution/ water pollution?

6)What effects can water pollution/ air pollution have?

7)List eight types of pollution you have learnt

8)Are there more natural disasters now than there were in the past? Why (not) ?

9)What should we do to prepare a typhoon/ floods/ drought?

10)What should we do to minimize/ deal with forest fires?

11)What do we need to know in case of evacuation?

12)Have you ever used social media to communicate with other people? What for? What 13)are the good things and bads thing when you use social media?

14)What does communication breakdown mean?

15)Three reason for communication breakdown.

16)What can you do to help avoid language barrier in communication?

17)What is its importance in our life?

18)What negative effects will robots have in the future?

6
10 tháng 5 2017

Topic 1: Write about types of pollution.

P/s : Chi 1 cai o nhiem thoi ...

Nowadays there are a lot of types of pollution such as : air pollution, water pollution, visual pollution .... and noise pollution. Noise pollution is constant and loud sound. To measure the loudness, or volumn of sounds , people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or motorcycle can result in permanent hearing loss after eight hours ? The sounds of a concert are even more serious. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music throughout headphones, and other people can hear it, it means the music is too loud and unsafe.

=> Bai nay co tao rut tu trg bai skills , co them y, cai nay thieu giai phap, tu xu.

Topic 2 : Talk about natural diasters and ways to prepare for them.

Today, there are more and more natural disasters that most people affect. In my opinion, we can't prevent natural disaster but we can have some preparation for them. There are many types of natural disasters but typhoon is a popular in our country. Firstly, typhoon is a tropical storm with wind and heavy rain. When it strike, it can weak havoc across large areas and effect lot of life or extensive damage to property . Flood can be happened by long heavy rain and people also can be became homeless. Last year lots of people were seriously injure in a typhoon. Natural disasters are also very dangerous but we also have some simple preparation . The first step is learnt about the risk in your area and read the information about natural disasters on gorvernment site. Next, find out that the rescue and emergency workers advice. It 's also important that you put together emergency supply it and should include food, water, medicine, document, and some money. Finally , plan safe places to meet your family and get to know the evacuation routes and shelter. In short, everyone sholuld protect environment to reduce this natural disasters.

3) Talk about ways of communication now and in the future.

Communication is a neccesary for eberyone. In present , there are three basic forms of communication: verbal, non-verbal and multimedia.

First, verbal ( meeting F2F) is a important way of communication help you success. I like hanging out with my friends and my friends and when I meet F2F with them I feel very confident. It explains why I can speak English easily. Let ' s try! You will have a great time. Secondly, you have a different thing to say non- verbal ( using signs ) will be a good choice. For example, you make your mother sad , you can use a sign to say ' sorry ' to her. Thirdly, with develop of science and technology , many multimedia appear such as video chatting , emailing,... You can know more information despite you still stay at home. But in the future, we can use telepathy or holography. Telepathy uses a tiny device place into our head. We will be communicating just by thought over the network. Holography will help us in our work. Even though, I prefer to chat with my friends. Life is more meaningful that way !
Khủng bố , :(((

10 tháng 5 2017

vl cho cái mỗi thứ 1 cái

Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high...
Đọc tiếp

Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.

1. What do people use to measure the loundness or volume of sounds ?

.............................................................................................................................................

2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?

..............................................................................................................................................

3. What can noise pollution also lead to ?

..............................................................................................................................................

4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?

..........................................

5. What can you do to help reduce the effects of noise pollution ?

1
21 tháng 1 2018

Noise is constant and loud sound. To measure the loudness, or volume of sounds, people use a unit called a decibel. When a sound is louder than 70 decibels, it can cause noise pollution. Do you know that the noise from a vacuum cleaner or a motorcycle can result in permanent hearing loss after eight hours? The sounds of a concert are even more serious. They can reach as high as 130 decibels and may cause immediate and permanent hearing loss. Noise pollution can also lead to headaches and high blood pressure. If you are listening to music through headphones, and other people can hear it. it means the music is too loud and unsafe. If there seems to be a ringing or buzzing in your ears, it means the noise is affecting you and damaging your hearing- Wearing earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels can help you reduce the effects of noise pollution.

1. What do people use to measure the loundness or volume of sounds ?

They use a unit called a decibel to measure the loundness or volume of sounds

2. Does the noise from a vacuum cleaner result in pernament hearing loss after eight hours ?

Yes, it does

3. What can noise pollution also lead to ?

It can also lead to headaches and high blood pressure

4. Is the music safe when you listen to it through headphones , and other people can hear it as well ?

No, it isn't

5. What can you do to help reduce the effects of noise pollution ?

I can wear earplugs when you go to concerts or other loud events, and listening to music through headphones or headsets at safe levels to help reduce the effects of noise pollution

X. Read the passage carefully and do the tasks. There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by nature, such as foods, forest fires, and volcanoes. People are the major Cause of pollution. We pollute the air with our cars, homes, and factories. Smoke from factories and car exhaust makes the air looks gray and smoggy. Some people cannot go outside when the air is very bad! We pollute the water by dumping garbage and Chemicals in the water....
Đọc tiếp

X. Read the passage carefully and do the tasks.
There are many kinds of pollution. Air, water, and land can be polluted. Some pollution is caused by
nature, such as foods, forest fires, and volcanoes. People are the major Cause of pollution. We pollute the
air with our cars, homes, and factories. Smoke from factories and car exhaust makes the air looks gray and
smoggy. Some people cannot go outside when the air is very bad! We pollute the water by dumping
garbage and Chemicals in the water. Plants and animals die because of the pollution in the water. We
pollute the soil with Chemicals and garbage. We harm the land by cutting down trees in the forest,
especially to build roads and new houses without careful planning and thinking.
The only way to save our environment is to think about pollution. How can you stop or limit pollution?
How do we protect our environment? Conservation is one way to protect our environment. Conservation is
the wise use and protection of our environment. We can control water pollution by not producing as much
as waste and by proper disposal of sewage and garbage. We can take care of recreation land by cleaning up,
after ourselves and not causing more pollution. Carpooling and public transportation will help reduce air
pollution.
Recycling is a type of conservation. Recycling is reusing items over again or in a new way. Recycling can
help us conserve our natural resources so they will last many more years. A. Find the word in bold in the
passage that means:
1. the protection of the natural environment ____
2. have a bad effect on something ____
3. a large amount of water covering an, area that usually dry ____
4. sharing a car ride with other people ____
5. waste gases that come out of an engine ____
6. the process of making air, water, soil, etc. dirty ____
7. get rid of ____
B. Choose the correct answers.
1. According to the passage, pollution________
A. is always caused by humans. B. can only be caused by nature.
C. is mainly caused by humans. D. may sometimes cause natural disasters.
2. What kind of pollution may a car cause?
A. Air pollution B. Water pollution C. Soil pollution D. Light pollution
3. Which of the followings is not an example of soil pollution?
A. Land development B. Waste disposal
C. Pesticide or fertilizer use D. Exhaust from traffic
4. How can we help save our environment?
A. Stop pollution. B. Dump garbage into the river.
C. Drive cars everywhere. D. Cut down trees in the forests.
5. How does recycling help the environment?
A. It expands landfills. B. It saves natural resources.
C. It increases water pollution. D. It causes air pollution.

6. What can we do to help reduce air pollution?
A. Walk or bike B. Carpool to work or school
C. Use public transport D. All of the above
7. What is the main idea of this article?
A.The air is dirty because of cars and factories. B. The soil gets polluted from littering.
C.People cause pollution, but they can also stop or limit it.
D. Conservation is the only way to stop environmental pollution.

1
7 tháng 3 2021

1-c;2-a;3-d;4-a;5-b;6-d;7-c