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21 tháng 1 2021

Water pollution is among one of the most concerning problem facing the world today. The most common cause of water pollution is the direct disposal of industrial and human waste into the surface water. A reason worth mentioning is the oil spill. Another cause of water pollution is human waste. Various kinds of pathogenic bacteria live in human feces, and they may cause gastrointestinal infection if they appear in the water supply. To summarize, water pollution is mostly the result of oil spills and industrial or human waste disposal, which severely affects the environment and subsequently the life of animals and human.

22 tháng 2 2021

reason  consequence solution

17 tháng 6 2016

Phần lựa chọn 1 là ko phải đâu nha các bạn

17 tháng 6 2016

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 ... 

We know that our country's traffic problem is very complicated. Often times traffic congestion, car accident. The reason is that the Vietnamese people do not have awareness when participating in traffic. often occupy the roadway, road traffic.all of the causes that often lead to car accidents when in traffic, traffic congestion, .... the way to avoid the above is when participating In traffic we should wear helmets, we must not go in the opposite direction, not occupy the roadway, do not dodge road traffic, do not ride too fast. The above things will limit the Vietnamese people from traffic accidents. We hope that the Vietnamese people are always conscious to reduce the rate of traffic accidents in our country.

thank you 

14 tháng 5 2021

Environmental pollution has become a controversial issue that puts severe pressure on our rhythm of life. The pollution on Earth has reached such an alarming level that immediate involvement from governments and individuals collaboration now are of great importance. First and foremost, industrial activities are considered to be the main cause for air pollution. Along with the global industrialization, the burning of fossil fuels, motor vehicles and factories are contaminating the air by their emission of harmful fumes. In the second place, pervasive deforestation for land use, overuse of fertilizers and the dumping pollutants such as plas or non- biodegradable packing in the ground has affected the ecosystem and led to soil pollution. This puts bad long- term effects on vegetation and soil fertility. Serious attempt to relieve the effects of pollution and preserve the environment need to be made as soon as possible. Governments can monitor the exhaust purification process of large factories so that they can prevent dangerous exhaust from the environment. Moreover, stricter regulations and laws against forests exploitation can help preserve pristine environment. Individuals should be responsible and raise awareness for the protection of environment. In conclusion, pollution has increasingly become a threat to the globe, directly affects our life and for the sake of environment and all citizens around the world, we should work hand in hand to protect our friendly house- the earth.

14 tháng 5 2021

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1 tháng 10 2021

Refer:

Modern society is constantly developing, and the appearance of the Internet has opened up a whole new era of access and sharing of information. This brings a tremendous reform and benefits to all humanity. In our lives there are innumerable questions that need to be answered, and the Internet was born as a useful tool to help us solve those questions. Searching for information in the past has cost humanity a lot of time and effort, and not everyone had patience to turn the pages one by one to find the information they needed. However, our lives have changed tremendously since the arrival of the Internet, and the search of general information on the Internet has not consumed us much more than mouse clicks and keyboard typing. This is where most basic and specialist information is gathered from the majority of occupations and fields in our life. There are countless websites that contain useful information for research and study, and Wikipedia is now considered to be the most complete and accurate encyclopedia. Searching the Internet is simple, but we should also be careful in getting that information. Not all knowledge on the Internet is accurate and complete, so we need to compare information from many different sources before actually using any of them for our purposes. The Internet is an infinite ocean of knowledge, and we can learn countless things if we know how to use it properly.