Environmental pollution causes serious harm should take measures to prevent. Man himself must be aware of the immense harm to the environment pollution. Legal system, strict sanctions for adequate penalties for individuals and organizations violated. The school departments coordinate with frequent reminders, propaganda, self-consciousness checks of people about hygiene. There should be proper reprimand for students with littering habits. Education community awareness about environmental protection. In recent times, we often heard of the movement "Earth Hour" .Which is one of the practical activities to help protect the environment. And we need to implement solutions in a synchronous way, often to overcome the consequences of environmental pollution, create clean living environment for humans,
In short, environmental pollution in our country today is a problem of serious consequences should condemn and discard. Let's protect the enviroment. Environmental protection is to protect the lives of people, so each of us needs to be aware, to contribute jointly build a green environment - clean - beautiful.

The issue of human habitats on Earth have been contaminated as a matter of urgency for any other country. Because it causes the phenomenon of climate change leads to terrible disasters. In Vietnam, the environmental pollution is still alarming. This is a bad phenomenon, much harm, should quickly overcome.
First, we need to understand what environment is? Human living environment is a broad concept. It includes all the elements of natural and man-made material surrounds the human, that affect life, production, survival and development of human beings and all living things on earth. Environment has two main categories: the natural environment and social environment. The natural environment includes natural ingredients such as topography, geology, soils, climate, water, creatures, ... The social environment is overall the relationship between man and man, relationship individuals with the community represented by the law, institutions, committed, regulations, ...

Current situation of environmental pollution is very serious ongoing sources of air contamination trong.O: the plant has been discharged to the atmosphere a giant carbonic sources, acids, gases causing the greenhouse effect, smog cars and other motor types. Water pollution: the world today and especially Vietnam has contaminated water sources, the demand for drinking water and drinking water in many regions are severely lacking, the number of people using clean water accounts rate is not great. Waters: ponds, lakes, rivers, streams, ocean sea, underground water, rain water and soil pollution ...: land is increasingly degraded, leaching, industrial waste, household waste operation, hospital waste
From understanding on environmental pollution we see much harm. There are many examples of environmental pollution in recent years. According to estimates of the Hydrometeorological, every year on the East Coast up to 9 to 10 hurricanes and 3 to 4 activities storms directly affect Vietnam, the phenomenon of desertification in the central coast are place more quickly have a large effect on the lives and production of residents. The most serious is that the area of ​​the Mekong Delta in our country will be able submerged below sea level in the near future, a region of fertile deltas, a bowl of water lualon we can take go if now we do not take timely measures to correct. And also how the immeasurable impact that climate change poses to the people of Vietnam.
Through the above examples we can see, the environmental pollution caused great harm to humans.
For human health: Air pollution can kill many living organisms, including humans. Ozone pollution can cause respiratory disease, cardiovascular disease, angina, chest pain, breathlessness. Water pollution causes approximately 14,000 deaths per day, mostly due to food and water by untreated waste water. The chemical and heavy metals contamination in food and water can cause incurable cancer. For ecosystems: sulfur dioxide and nitrogen oxides can cause acid rain reduces the pH of the contaminated dat.Dat may become barren, unsuitable for crops. This will affect other living organisms in the webs and dew an.Khoi reduce sunlight that plants get to perform photosynthesis hop.Cac animals can invade, occupy competition habitat and harm to native species, thereby reducing biodiversity hoc.Khi CO2 produced from plants and passing vehicles also increases the greenhouse effect, making the Earth a hot day up, the existing ecological zones gradually destroyed ...
There are many causes of environmental pollution. The main reason is because of human consciousness do not respect environmental protection laws. Status watershed deforestation, protection, covering an area of ​​reduced ngiệm trong.Vi immediate economic profits that companies, factories were discharged despite environmental law, waste water untreated industrial, industrial waste, medical waste, household waste is not biodegradable, ... of human awareness on environmental pollution is very limited ... the law is not strictly true, not strong enough to prevent any breach of the law on environmental protection ... the educational awareness to preserve and protect the environment have not been properly concerned, have not been held regularly. Although on the mass media still has the program called for environment protection consciousness of people, but they are too small, can not meet the demand to learn and people learn. So that the level of knowledge of the people is low leading to compliance rules and attitudes in public places are not put into place. Partly due to the management and control of the agencies still loose, inefficient, ... no strict forms of handling individuals and units, the company violated, or otherwise said that to ignore.
Environmental pollution causes serious harm should take measures to prevent. Man himself must be aware of the immense harm to the environment pollution. Legal system, strict sanctions for adequate penalties for individuals and organizations violated. The school departments coordinate with frequent reminders, propaganda, self-consciousness checks of people about hygiene. There should be proper reprimand for students with littering habits. Education community awareness about environmental protection. In recent times, we often heard of the movement "Earth Hour" .Which is one of the practical activities to help protect the environment. And we need to implement solutions in a synchronous way, often to overcome the consequences of environmental pollution, create clean living environment for humans,
In short, environmental pollution in our country today is a problem of serious consequences should condemn and discard. Let's protect the enviroment. Environmental protection is to protect the lives of people, so each of us needs to be aware, to contribute jointly build a green environment - clean - beautiful.

Enviroment is the most important thing for our life. Enviroment is the air we breath, the water we drink and is everything we need for our life. But now that most important thing for our life is being polluted and by many different ways. This pollution affects the health of living things. Air is damaged by car and lorry fumes, and power stations create acid rain which destroys entire forests and lakes. When fossil fuels i.e. oil, gas and coal are burned to provide energy for lighting, cooking etc. they form polluting gases. Not only on land but also in the sea, oils spills pollute sea water and kill marine life; chemical waste from factories and sewage works, and artificial fertilisers from farmland, pollute river water, killing wildlife and spreading disease. Everything is being caused by human’s existence. Humans create such a lot of rubbish! Each household produces about 1 tonne of rubbish every year! Most of this is taken away by dustmen and buried in enormous landfill sites or burned in incinerators - both of these actions can be dangerous for the environment. 
 But only we can change it and solve it. Pollution can be prevented by thing we do everyday. First we can use recycled paper to help save trees. Second try to avoid buying plastic. It's hard to recycle. One way to cut down on plastic is to refuse to use carrier bags. If we can’t avoid buying plastic bags, we should use re-use plastic bags over and over again, until they wear out. Finally we should take your old clothes to charity shops, some are sold. To protect environment we also have to save energy. Use less energy by switching off lights when rooms are not in use, not wasting water; don’t forget to switch off all electric things when they are not in use, use a bicycle or walk instead of using a car for short trips we can save energy, keep clean atmosphere and keep healthy life. Lighting accounts for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by replacing an ordinary 100-watt light bulb with an energy-saving bulb and we still trying to invent the new thing to save money as well as conserve the Earth’s resources. 
 Keep clean environment isn’t only all ways are mentioned before but also to protect natural resources. That is the way to conserver wild life. First we need to conserve the old forest, rainforest, build more safari and national park, and plant more trees to make place to live for wild animals. Second we need to prohibit hunters who hunt animals too many out of the law allowance. 
Finally, we now know that enviroment is the most important thing for life and we know how to protect and use it scientifically. Everyday we invent and find more and more way to protect enviroment. I hope that in the future the earth will be cleaner.

Tick cko mk nhé!

Các biện pháp chống ô nhiễm không khí:

- Không thải các khí thải công nghiệp ra ngoài môi trường.

- Trồng cây xanh quanh các nhà máy và hai bên đường để lọc khí.

Các biện pháp chống ô nhiễm nguồn nước:

- Không xịt thuốc quanh nguồn nước.

- Không xả rác xuống nguồn nước,...

-Biện pháp chống ô nhiễm không khí:

+Hạn chế khí thải cacbon dioxit(CO2) từ các nhà máy.

+Giảm khói do xe cộ thải ra bằng cách trồng nhiều cây .

+ Sử dụng hiệu quả các thiết bị lọc bụi, khí thải ra từ các nhà máy.

+Đổi mới công nghệ.

-Biện pháp chống ô nhiễm nguồn nước;

+Hạn chế rác thải ra sông hồ

+nước thải sinh hoạt phải được xử lí trước khi thải ra sông ngòi
+các nhà máy công nghiệp phải xử lí nước thải trước khi thải ra sông ngòi
+ko làm ô nhiễm đất vì chất thải sễ ngấm vào nguồn nước ngầm
+ko thải qua nhiều co2 ra ko khí vì sẽ tạo ra mưa axit và ô nhiễm nước
+sử dụng năng lượng sạch
+tích cực bảo vệ môi trường

Phần lựa chọn 1 là ko phải đâu nha các bạn

Environmental pollution is the status of environmental contamination by chemical, biological ... affect human health, other living organisms.Environmental pollution is caused by humans and human management. 
The main types of pollution : 
- Air pollution : Smoke and dust discharge chemicals into the atmosphere. Examples of toxic gases as carbon monoxide, sulfur dioxide, cloroflorocacbon substances (CFCs) and nitrous oxide are of industrial waste and vehicle 
- Water pollution occurs when surface water flows through the domestic waste, industrial waste water, pollutants in the ground, and groundwater seepage. 
- Soil pollution occurs when soil contaminated with toxic chemicals (concentrations exceed normal limits) by the activities of man as active mining, industrial production and use of chemical fertilizers Study or too much pesticide, ... or leaks from underground storage tanks. Most common types of soil contaminants are hydrocarbons, heavy metals, MTBE, herbicides, pesticides, and chlorinated hydrocarbons . 
- Radioactive Pollution , Noise pollution , Light Pollution ... 
Affect : 
+ For human health : Air pollution can kill many living organisms including humans. Ozone pollution can cause respiratory disease, cardiovascular disease, inflammation of the throat, chest pain, breathlessness. Water pollution causes approximately 14,000 deaths per day, mainly by eating contaminated with untreated water. Chemicals and heavy metals contamination in food and drink can cause cancer. Oil spills can cause itching blisters. Noise pollution causes hearing loss, hypertension, depression, and insomnia., causing serious consequences . 
+ For ecosystem : 
- Sulfur dioxide and nitrogen oxides cause acid rain can reduce soil pH. 
- Contaminated land may become barren, not suitable for crops. This will affect other living organisms in food webs. 
- Smoke and fog reduce sunlight that plants receive to make the process of photosynthesis. 
- Invasive species that can compete and occupied habitat for endangered native species, thus reducing biodiversity. 
CO2 generated from the factories and passing vehicles also increases the greenhouse effect. Earth on a heating up. Gradually destroying the natural resort where it is available. 
Solutions to limit environmental pollution :. 
- Combat desertification and silver color. 
- Natural water treatment contaminated ... 
- Purify air ... 

Bình chọn ko có câu nào đúng cả

tham khảo 

Những nguyên nhân nhiễm giun sán
Nguyên nhân gây ra bệnh giun sán là do người bị nhiễm phải ấu trùng hoặc trứng của giun, sán qua đường tiêu hóa khi ăn phải các thức ăn có trứng giun, trứng sán.
Người lớn và trẻ em đều có thể mắc bệnh giun sán. Trẻ em hầu hết đều có giun, có nhiều loại giun song trẻ thường hay bị giun đũa và giun kim. Giun có thể bị nhiễm qua đường ăn uống, do ăn thức ăn không đảm bảo vệ sinh, chưa chín kỹ, uống nước chưa đun sôi, ăn các loại rau sống chưa được rửa sạch, qua bàn tay bẩn, qua nguồn nước không vệ sinh và qua sinh hoạt hàng ngày tiếp xúc trực tiếp với môi trường đất. Trẻ em có thể bị nhiễm giun khi đưa đồ chơi bẩn vào miệng, cầm nắm thức ăn không rửa tay trước khi ăn.
Bệnh sán lợn, ấu trùng sán lợn gặp ở nhiều nơi trên thế giới (trong đó có Việt Nam), người mắc bệnh thường do ăn phải thức ăn có nhiễm trứng sán lợn hoặc ấu trùng sán lợn (như thịt lợn gạo) chưa được nấu chín kỹ. Thông thường, ấu trùng sán lợn sẽ chết khi được đun nấu ở nhiệt độ 75o C trong vòng 5 phút hoặc đun sôi trong vòng 2 phút.
Các biện pháp phòng bệnh giun sán
Phòng chống bệnh giun sán ngay từ đầu chính là cách tốt nhất để đảm bảo sức khỏe cho mỗi người và cho cả cộng đồng băng cách:
- Cắt đứt nguồn nhiễm, điều trị người nhiễm, tẩy giun định kỳ. Cần tập thói quen tẩy giun định kỳ cho cả gia đình tối thiểu 6 tháng một lần (ít nhất 2 lần trong năm).
- Giữ vệ sinh cá nhân, rửa tay trước khi ăn và sau khi đi đại tiện, không nghịch bẩn, thường xuyên tắm rửa, không đi chân đất, không để trẻ bò lê la dưới đất. Cắt móng tay, đi dép thường xuyên, bảo hộ lao động khi tiếp xúc với đất.

- Thực hiện ăn chín, uống sôi, ăn các thức ăn đã được nấu chín kỹ, chế biến hợp vệ sinh.
- Không sử dụng thịt lợn ốm để chế biến thực phẩm. Không ăn tiết canh,  thịt lợn tái, các loại gỏi cá, nem chua sống, thịt bò tái, đối với các loại rau sống cần phải ngâm rửa kỹ trước khi ăn. 
- Quản lý phân tươi, nhất là ở những vùng có người nhiễm sán dây lợn trưởng thành. Sử dụng hố xí hợp vệ sinh. Không nuôi lợn thả rông.Không sử dụng phân tươi để bón cho cây trồng nhất là các loại rau.
-  Không để ruồi nhặng bậu vào thức ăn. Không để chó, lợn, gà... tha phân gây ô nhiễm môi trường.
- Người mắc bệnh giun, sán cần phải được khám và điều trị triệt để theo đúng phác đồ của Bộ Y tế.

Tham khảo!

Các giai đoạn hình thành lỗ sâu răng:

- Giai đoạn 1: Men răng bị ăn mòn, có thể xuất hiện những đốm mờ đục, sau đó, dần ăn mòn men răng.

- Giai đoạn 2: Xoang sâu lan đến ngà răng, xuất hiện những lỗ sâu răng màu đen.

- Giai đoạn 3: Viêm tủy răng. Tủy răng sẽ bị vi khuẩn tấn công khi mất đi 2 lớp bảo vệ bên ngoài là men răng và ngà răng, dẫn đến nhiễm khuẩn và viêm tủy răng.

Tham khảo mấy cái definition với causes effects solutions r tự viết he

Soil pollution happens when human activities destroy the earth’s surface.

Causes: pesticides, herbicides, chemical industrial waste, deforestation...

Effects: soil pollution, soil erosions, the upper layer of soil is damaged, effects on wild-life...

Solutions: Fine heavily people who cut the forest and those who release chemicals waste into the ground.

Soil pollution occurs due to untreated disposal of industrial wastes into soil; it has high toxic contaminants, which leads to soil pollution. Industrial wastes have different amount of toxic contents and hazardous chemicals such that when deposited in soil, they affect the soil layer strength in the top soil, thus reducing the soil fertility and biological activity of the soil. In addition to that a hazardous effect leads to ecological imbalances, thus making troubles in crop production. Apart from that, it may cause severe health problem for those who are consuming such crops, because soil and crops are contaminated by toxic chemicals and hazardous materials.

Water pollution is one of the serious pollution situations. Water pollution is caused by industrial waste, sewage, pesticides, herbicides, pollutants from rainwater and the atmosphere. Water pollution causes illness even death for humans, it also causes death of aquatic animals. Nowadays, people are aware of this problem and we are thinking of several solutions such as: Heavy fines on companies that pollute water sources, educate people about the environment and reduce the use of pesticides.

       Tham khảo

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.