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hchann003
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Nếu tam giác MNP đồng dạng với tam giác QKS theo tỉ số đồng dạng 3/5 và diện tích tam giác MNP là 81 xăngtimet vuông thì diện tích tam giác QKS là bao nh các bn chỉ cần ghi đáp án thoi nhé
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Ex2: Read the passage below and choose the best response to each of the questions. (1.0pt) More than two hundred years ago, the term environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the environment. Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars give out dangerous gases that cause poisonous air and cancer, but no one wants to travel on foot or by bicycle. Manufactures know that wastes from factories make water and soil polluted, but they do not want to spend a lot of money on treating the wastes safely. Scattering garbage is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about pollution? 1. More than two hundred years ago, …… A. the environment was polluted as much as it is today. C. air was polluted badly. B. people knew nothing about environmental pollution. D. people were faced with pollution. 2. Nowadays, many people are concerned about …… A. the poisonous air. B. the polluted water. C. the wastes form factories. D. the environmental pollution. 3. According to the passage, people know that motorbikes and cars give out dangerous gases …… A. so they do not travel by motorbikes and cars. C. so they prefer traveling by bicycles. B. but they prefer traveling by motorbikes and cars. D. and they enjoy traveling on foot. 4. Factory owners …… A. know nothing about pollution. C. pollute water and soil. B. spend a lot of money on treating wastes. D. don’t treat industrial waste safely 5. Which of the following is not true? A. In the past, people led a healthy life. B. people have no awareness of the danger of pollution. C. Water is now heavily contaminated by industrial wastes. D. It’s harmful for our health if rubbish is spread over our areas.

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