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lengochien13022006
2 năm trước
Cho 2 lít NaOH của 0,5 mol tính nồng độ mol của NaOH
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IV. Read the following passage and choose the best answer (A, B, C or D) to each question. Bill Morell is the founder of Future Forests, an organization that deals with the complex environmental problem of global warming. His solution to saving our planet is quite simple. It involves planting trees around the world to help absorb the carbon dioxide that is being created. The average U.S or UK citizen has a lifestyle that annually produces 11 tons of CO2. Future Forests plants trees for £3 each and aims to give people the power to repair the damage that they have caused to the environment. Trees naturally absorb CO2 and, in its place, produce oxygen. Future Forests helps us to understand the damage we are doing to the environment by explaining it in simple, basic terms. For example, it takes five trees to absorb the CO2 released by a refrigerator over its lifetime, while it takes four trees to absorb the CO2 produced by using a washing machine for six years. As people see the connection between planting a tree and CO2 absorption, it makes them more aware of the direct role they are playing in polluting the environment, while showing them how they can help repair the damage. Future Forests has attracted support from actors, artists, businesses, governments and more than 10,000 ordinary citizens around the world. The foundation has planted over 148,000 trees in 55 forest sites in India, Mexico and the UK. Recycling the world’s air is no easy task. Morell explains that the members of Future Forests are aware that they are entering a long-term commitment to the environment, and that we can all do our part to save our planet, one tree at a time. 46. What is the article about? A. Bill Morell’s life B. Recycling C. Deforestation D. Planting trees to save the planet 47. What is Future Forests’ goal? A. To create forests for people B. To create CO2 C. To collect money to save our forests D. To help people participating in preserving the environment 48. Which is true? A. Future Forests is only supported by celebrities. B. Trees can replace CO2 with oxygen. C. Damage to the atmosphere is permanent. D. Average citizens are not responsible for air pollution. 49. If you plant six trees, you absorb the CO2 emissions produced by using _____. A. your car for twenty years B. your washing machine for ten years C. your refrigerator for its lifetime D. all your electrical appliances for one year 50. How can people save the planet according to the article? A. By not using electrical appliances B. By reducing CO2 emissions and planting more trees C. By giving up bad habits D. By understanding the world’s environmental problems Giúp em với ạ! Em cảm ơn!

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