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เกิดไรขันกังสั้งแวดล้อมyo) (งา แปลว่า ด ทับ What is happening to.the Environment? Rivers mพัยใหม่ A new study shows that 86 per สะพวณขัมแม่น้ำเทพ cent of the world's rivers have been damaged by human activity. The study was Conducted by researchers from a university in Toulouse, France. เคทะน์ They examined data on over 2,500 rivers around the world)but they did not Look at rivers in the polar regions of the Arctic and Antarctica or in deserts.)The scientists looked into changes to biodiversity over the past 200 years. They)discovered that biodiversity in over half of rivers has been seriously damaged by humans. The researchers said there were many reasons for this damage. A big reason is the introduction of new species of fish into rivers. Other reasons include polution, dams, overfishing, farming and ปลก) : อ่างๆ mราะน climate change. The researchers say the worst-hit rivers are in western Europe and North America. This is because these regions have large and rich towns and cities. The เมือที่มาฐานางเบ lead researcher said: "Rivers which have the most economic development around ่"ง them, like the Mississippi River, are the most strongly impacted." The River Thames inj London was one of the worst-affected rivers in the study. The least- impacted rivers are in Africa and Australia. The researcher said: "This is probably due to a slower rate of สูคนที่ 90 191 เสชมา ความ นนา Iณนนยฆาก industrialisation in Africa and low population density around rivers in Australia." He added that rivers in many rich nations are unrecognisable compared with how they were 200 years ago. เลวมาก เลวที่สุด / HgrSe / the Nor s t 3/ be tey / the st ดีมา ก ดที่สด Acknowledgement

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What moabos people Successน bte s Who do you think is the most successful? Who do you think is the least Successful? In order to answer these questions, we first need to define success. Everyone has a different definition. Many of us place great value on performance, on achievements, or on Others goals. SUCSS reaching various associate success with material goods, measuring it by how much one can acquire. Others measure success by how much they can contribute to the well-being of their families, or to the community and society in general There are many other definitions, but mostly success is associated with becoming rich, famous, and respected at work. Yet, it doesnt have to be that way. Being successful could mean simply being satisfied with oneself and one's career. For many people, a successful person is someone who feels that his or her work and life in general offer an exceptionally high degree of satisfactions. But how does one get from here to there? How does one reach this feeling of satisfaction with life and career? It seems that successful people consistently do two things: * They use their natural abilities in their work. * They set career and life goals. In other words, successfuนl people choose careers where they can use their natural abilities, or do what comes naturally to them. For example, successful teachers are people who instinctively know how to help people learn, and the best doctors are those who know how to listen to people. Successful people know where they are starting from, and what direction they want to give their lives and careers, even if it is something as simple and wonderful as raising a happy family. What are your natural abilities? What are your career and life goals? If you can answer these questions, you are on your way to having a Successful career and life.

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Read the text carefully. Years ago there wasn't a problem with rubbish because things like plastic and disposable nappies hadn't been invented. There wasn't so much packaging on items you bought either. But now with everything so over packaged wrapped and disposable we are suffering the consequences of far too much waste. The trouble is not everything can be recycled or will rot away. You used to be able to get a refund on glass bottles when you took them back to the shop. Now they are either collected from your house by the council or you can take them to a bottle bank. The fact that paper can be recycled and is easy to dispose is great, but remember paper is made from trees, which are important to the environment. The rainforests have been slowly disappearing for a while now. We need them not just because it helps with the climate. They are important as like all plants they give us oxygen. They are also a home to many animals who rely on them for their survival. The best waste is organic, dead leaves; carrot tops, onion skinร and so on all rot down and make fertile soil. This in turn will help the plants and vegetables giving them much needed food. So if youน are able to have a compost heap in your garden you'll be helping the environment and your garden wil love you for it. Acid rain is another serious problem it is damaging to plants and is caused by pollutants such as sulphur dioxide and nitrogen oxides. These come from the burning of coal, oil and gas. Dropping litter is not just a lazy thing to do it makes work for other people, is bad for the environment and looks ugly. So think before you drop litter either bin it or keep it and then bin it. When rivers and seas are polluted by waste we are not only stealing their beauty but were spoiling it for ourselves too. Our health can also suffer. Sadly accidents do occur; oil slicks sometimes happen and wreck the environment. Aninmals tend to suffer the most from these incidents. We should really have in place something that will prevent so much destruction, rather than just waiting for it to happen, then trying to clean up the damage. Nuclear waste has been the cause of controversy over the years. Radioactive material leaking out would be very serious indeed, it can cause real harm. This is why it is the most worrying. Although we are trying to stop the hole in the ozone layer getting any bigger, nuclear waste is still a serious problem. The 0zone layer protects us from harmful ultra - violet rays. Its hole has been caused by chlorofluorocarbons (cfc's) a chemical that was found in some products. Refrigerators used to contain them. So do we care enough about the earth we have inherited and our passing onto future generations? Or is it now all too late to do anything? Each one of us can make a difference and each and every one of us is responsible to the environment. It takes care of us; we should take care of it. Source: http://www.childrenswebmagazine.com/Environment.htm (slightly adapted) A) Say who or what the following words refer to. 7. these 1. them 8. it 2. they 9. their 3. them 10. these 4. นร 11. we 5. who 12. them 6. them 13. it

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หน่วยการเรียนรู้ที่ 3 พันธุกรรมและความหลากหลายทางชีวภาพ 83 5. ประชากรของกระหอกสปีซีส์ A อาศัยอยู่บนพื้นแผ่นดินไหญ่แห่งหนึ่ง เมื่อผสมพันธุ์กันทำให้มีประชากร กระรอกเพิ่มมากขึ้น ต่อมาพื้นแผ่นดินนั้นค่อย ๆ แยกจากกันเป็นพื้นแผ่นดินไหม่ ทำให้กระรอกสปีชีส์ A ที่อยู่ในพื้นแผ่นดินใหญ่เปลี่ยนแปลงไปเป็นสปีชีส์ 3 และสปีชีส์ ( ดังชูป Species A อธิบายกระบวนการเกิดสปีชีส์ใหม่ของกระรอก พร้อมทั้งให้เหตุผลโดยใช้หลักการทางวิทยาศาสตร์ 6. พิจารณาแผนภาพสายวิวัฒนาการ (cvolution tree) แบคทีเรียสังเคราะห์ ด้วยแสง แบคทีเรีย พืช สัตว์ ฟังใจ เวลา อาร์เคียแบคทีเรีย ยูแบคทีเรีย บรรพบุรุษของยูแคริโอต บรรพบุรุษของโพรแคริโอต 6.1 เหตุใดแบคทีเรียจึงมีบรรพบุรุษเป็นโพรแคริโอต 6.2 บรรพบุรุษของยูแคริโอตพัฒนามาจากอะไร และเหตุใดพืช สัตว์ และฟังใจจึงมีบรรพบุรุษเป็น ยูแคริโอตเหมือนกัน 6.3 เวลามีความสัมพันธ์กับแผนภาพสายวิวัฒนาการนี้อย่างไร

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Part One: Grammar Items 1 - 15: Error recognition Instruction: Read the following statements and choose the underlined part that is grammatically wrong. Objective: Students can be able to classify passive form. Items 1 - 15: Error recognition 1. The first time of motorcycle race on record in Thailand take place in 1960. 1 2 3 4 2. For the world's starving millions, find enough food to keep body and soul together 1 2 3 has become the paramount concern in life. 4 3. I hadn t know the bad news when he told me. 1 2 3 4 4. A high rate of TV watching among children in poorer suburban areas and in the 1 provinces, compared to those living in large urban centers, is often because poverty 2 4 and lack of other kinds of entertainment in the area. 5 5. Jenny told Christina that he would look forward to see him soon. 1 2 3 4 6. Famous novel on mental disorders are being continually supplemented by dramatic 1 2 3 presentations in the theaters, in the movies, and on television. 4 7. The number of students want to pass the examination. 1 2 3 4 8. Deep sea fish are well adapted to their environments, but they have not yet learned 1 2 what to avoid their greatest predator - man. 3 4 9. Natural selection defines as the process that directs the course or evolution by 1 2 preserving those traits best adapted for an organism's survival. 3 4

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