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Trắc nghiệm Unit 7: Reading Tiếng Anh 8

30 câu trắc nghiệm tiếng anh lớp 8. Chấm ngay khi nộp trên thang điểm 10, xem được đáp án từng câu sau đó.

Tiếng AnhLớp 8Luyện tập30 câu45 phútQuản trị viên
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Dưới đây là toàn bộ câu hỏi của đề. Làm bài để được chấm tự động, xem lời giải và theo dõi tiến độ theo từng chủ đề.

  1. 1Một đáp án · A2

    Read the passage carefully and choose the correct answer. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used at home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. Pollution is caused from the following sources except ________.

  2. 2Một đáp án · A2

    Read the passage carefully and choose the correct answer. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used at home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. Recycling can help us ________

  3. 3Một đáp án · A2

    Read the passage carefully and choose the correct answer. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used at home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. In order to save water, we can do all of the following things except _______.

  4. 4Một đáp án · A2

    Read the passage carefully and choose the correct answer. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used at home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. Recycling helps to reduce waste because _________

  5. 5Một đáp án · A2

    Read the passage carefully and choose the correct answer. Saving the Environment: One Home at a Time Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals, the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used at home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. The word “It” in paragraph 2 refers to ________.

  6. 6Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. What is the main topic of the passage?

  7. 7Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. How many kinds of pollution are there in the world now?

  8. 8Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. Which of the following is not the effect of air pollution?

  9. 9Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. What is the effect of water pollution?

  10. 10Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. Soil pollution may be caused by _______.

  11. 11Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. Noise pollution can lead to________.

  12. 12Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. Because of increased temperature, it can be ________ for wildlife species to recover from quick changes.

  13. 13Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. If light pollution happens near places where many people live, it can ____________;

  14. 14Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. Unattractive views can make people feel ________.

  15. 15Một đáp án · A2

    Read the passage carefully and choose the correct answer. Types of pollution In total, there are eight sources of pollution in the modern world, which put negative effects on the natural world and the health of human beings. Air Pollution Air pollution comes from many sources such as vehicle exhaust, and construction. Several effects are smog increases, higher rain acidity, and higher rates of asthma. Water Pollution Water pollution can be caused by improper waste disposal and littering. Some effects of water pollution are decreasing the quantity of drinkable water, and affecting aquatic life. Soil Pollution Soil pollution sources include poisonous waste, sewage spills, household dumping and littering. Soil contamination can lead to loss of wildlife habitat. Noise Pollution Noise pollution can come from traffic, airports, railroads, construction, and concerts. Hearing loss is one example of noise pollution effects. Radioactive Pollution Sources of radioactive contamination include nuclear power plant accidents, and improper nuclear waste disposal. Radiation pollution can cause birth defects, cancer, and other health problems. Thermal Pollution Thermal pollution may be caused by power plants, air pollution, and deforestation. As temperatures increase, wildlife populations may be unable to recover from quick changes. Light Pollution Sources include large cities, billboards and advertising. If it is near residential areas, light pollution can decrease the quality of life for residents. Visual Pollution Visual pollution can be caused by other pollution or just by undesirable, unattractive views. It may lower the quality of life, or affect property values and personal enjoyment. Any kinds of pollution can affect our lives _________.

  16. 16Một đáp án · A2

    Light pollution is the excessive, misdirected or invasive use of artificial outdoor lighting.

  17. 17Một đáp án · A2

    Light pollution sprawled beyond the city limits and into suburban and rural areas.”.

  18. 18Một đáp án · A2

    Chicago is the most light-polluted city in the world.

  19. 19Một đáp án · A2

    A city in Hong Kong is more than two hundred times brighter than a normal one.

  20. 20Một đáp án · A2

    Luminous pollution of this magnitude is on the rise worldwide.

  21. 21Một đáp án · A2

    Choose the letter A, B, C or D to complete the passage below Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking. Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes. Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

  22. 22Một đáp án · A2

    Choose the letter A, B, C or D to complete the passage below Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking. Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes. Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

  23. 23Một đáp án · A2

    Choose the letter A, B, C or D to complete the passage below Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking. Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes. Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

  24. 24Một đáp án · A2

    Choose the letter A, B, C or D to complete the passage below Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking. Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes. Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

  25. 25Một đáp án · A2

    Choose the letter A, B, C or D to complete the passage below Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking. Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes. Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

  26. 26Một đáp án · A2

    How many causes of water pollutions are listed in the passage?

  27. 27Một đáp án · A2

    Is the sewage from factories treated before dumping into water bodies?

  28. 28Một đáp án · A2

    What is the main reason for cancer disease?

  29. 29Một đáp án · A2

    What is cancer called when it has become a popular disease in several communes?

  30. 30Một đáp án · A2

    What did Vietnamese do in 2004?

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