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B
14 tháng 3 2020
Trâm nghỉ bạn nên tham khảo các bài sau và viết theo cách của riêng mình nha 
. Trâm có đọc qua thì thấy họ viết khá là hay và ok.
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What is water pollution?
What are the sources of water pollution?
How do farmers pollute water?
How do mills and factories pollute water?
How do ignorant people pollute water?
How do water vehicles pollute water?
How does polluted water affect us?
How can we minimize water pollution?
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Bài 1: When water becomes undrinkable and harmful for our existence, we call it polluted. Water is polluted in many ways. Firstly, farmers often use chemical fertilizer and insecticides in the corn fields. When rain and flood water wash away these chemicals into the rivers, canals or ponds and water gets polluted thereby. Secondly, mills and factories throw their waste into the rivers and canals and thus pollute water. Thirdly, ignorant people pollute water by throwing human waste and filth from drains and unsanitary latrines. Water vehicles also pollute water by dumping oil, food waste and human waste. By drinking polluted water, we suffer from fatal diseases-and die. Water pollution may cause serious environmental disaster. To minimize water pollution, various measures may be taken. However, making people aware of the dangers of pollution is the best measure to reduce water pollution to an optimum level. Bài số 2 Water pollution is one of the most serious environmental problems. It occurs when water is contaminated by such substances as human and animal wastes, toxic industrial chemicals, agricultural residues, oil and heat. Most of our water bodies— rivers, lakes, seas, oceans, estuaries and underground water sources (i.e., tubwells, bore wells) are gradually becoming polluted. In the course “Covered so far, you have seen how deforestation, urbanization, intensive agriculture and industrialization have caused pollution of water bodies. You are familiar with various aspects of air pollution, including harmful effects of acid rain. In this unit we will summaries various types of water pollution caused by different pollution sources, and also explain some important concepts such as point and non-point sources, biological oxygen demand (BOD), eutrophication, self-purification capacity of natural waters, infiltration of pollutants to groundwater, thermal pollution and pollution caused by accidents in oil tanker ships. In the next unit you will read about the degradation of land resources and terrestrial features of earth. Polluted water may look clean or dirty, but it invariably contains germs, chemicals or other materials that can cause inconvenience, illness or death.
KY
16 tháng 5 2022
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.
16 tháng 5 2022
Refer:
Nowadays, pollution is a popular term with everyone in the world and air pollution is one type of pollution. The definition of air pollution is one such form that refers to the contamination of the air, irrespective of indoors or outside. A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution. There are some main reasons which cause air contamination such as burning of fossil fuels, agricultural activities, exhaust from factories and industries, mining operations, and indoor air pollution. Air pollution always has bad effects on our life. Harmful gases, dust, and smoke enter into the atmosphere and make it difficult for plants, animals and humans to survive. We also can see some examples of the result of air contamination which occurs around us as global warming, acid rain, and depletion of ozone layer. The effects of air pollution are alarming, so governments over the world should have suitable policies of protecting the environment, especially air quality to create a clean world for our generation in the future.
CD
4 tháng 2 2018
Fresh water is the most important source of life on the earth. Any living thing may survive without food for days however it is impossible to imagine life without water and oxygen. The ever increasing human population enhances the demand of more water for purposes like drinking, washing, performing industrial processes, irrigating crops, arranging swimming pools and other water-sports centres. Water pollution is done by the people of all over the world because of increasing demands and competitions of luxuries life. Waste products from many human activities are spoiling the whole water and decreasing the amount of oxygen available in the water. Such pollutants are altering the physical, chemical, thermal, and biological characteristics of the water and adversely affecting the lives inside as well as outside the water.
When we drink the polluted water, harmful chemicals and other pollutants goes inside our body and deteriorates all the body organs functioning and puts our lives in danger. Such harmful chemicals also disturb the lives of animals and plants greatly. When plants absorb dirty water through their roots, they stop growing and die. Thousands of seabirds are killing because of the oil spilling from ships and industries. High level of water pollution is done due to the chemicals coming out of the agricultural usage of fertilizers, insecticides and pesticides. The effect of water pollution varies from place to place upon the type and amount of water contamination. The degradation of drinking water needs an urgent basis prevention method which is possible by the proper understanding and support from the end of each and every person living on the earth.
PT
0
LT
1
29 tháng 4 2020
In some remote areas in Vietnam, some people do not have enough clean water to use. As a result, they have to use the water from the river or hand-digged wells and they contain some substance that affects health. Moreover, water filtration systems are impossible to meet the needs of people. The authority has applied a lot of solutions and actions but it must take a lot of time and efforts to supply clean water to every house. Furthermore, the rivers and lakes are contaminated by factories that pour waste into them. They should have inadequate waste-treatment systems to filter the waste before pouring it into the river and the government should have new strict laws to prevent the firm pour waste into water. Water pollution causes great damage, it causes diseases like cholera, diarrhea and skin diseases. The fatality rate of cholera has risen recently especially the children under 5. Water pollution can destroy farming and kill animals around the source like fish and some aquatic life. Water pollution can kill plant life, plants died when they were irrigated with water containing heavy chemicals.
LT
1
Visual pollution is an aesthetic issue and refers to the impacts of pollution that impair one's ability to enjoy a vista or view.
Visual pollution disturbs the visual areas of people by creating harmful changes in the natural environment. Billboards[1],[2] open storage of trash, antennas, electric wires, buildings, and automobiles are often considered visual pollution. An overcrowding of an area causes visual pollution. Visual pollution is defined as the whole of irregular formations, which are mostly found in natural and.[3][4]
Effects of exposure to visual pollution include: distraction, eye fatigue, decreases in opinion diversity, and loss of identity