For most North American households, lighting accounts (15)__________10 percent to 15 percent of the electricity bill. (16) __________, this amount can be reduced by (17) ___________ an ordinary 100-watt light bulb with an energy-saving bulb. These bulbs use a quarter of the electricity of standard bulbs and last eight times (18) ____________. Therefore, consumers can save about US$7 to US$21 per bulb. In Europe, there is a labeling scheme for refrigerators, freezers, washing machines and tumble dryers. The label (19) ____________ the consumers how much energy efficiency each model (20) ______with other appliances in the same category. Ultimately, these innovations will save money as well as conserve the Earth’s resources 13. A. on B. with C. for D. about 14. A. Therefore B. Although C. Moreover D. However 15. A. to replace B. replaced C. replacing D. replace 16. A. faster B. slower C. more D. longer 17. A. says B. tells C. reports D. talks 18. A. has compared B. compares C. compared D. is comparing Read the passage and then decide whether the statements that follow are TRUE or FALSE (1.0pt) Environmental pollution is the most serious problem facing mankind today. Air, water and soil are necessary to the survival of all living things. Badly polluted air can cause illness and even death. Polluted water kills many kinds of wild animals and other marine life. Pollution of soil reduces the amount of land for growing food. 19. The most danger of the environment is pollution. __________ 20. Polluted air, polluted water and polluted soil don’t affect our life. ___________ 21. Many kinds of wild animals and other marine life are polluting the water resources. ___________ 22. The pollution of soil makes the amount of land for growing food narrower. ___________ Read the passage again and choose the best answer ( A, B, C or D) (0.5pt) 23. The word “serious” in line 1 is nearest meaning to ______________ A. complicated B. safe C. dangerous D. popular 24. The main idea of this paragraph is _____________ A. The disadvantages of pollution B. Our environment C. The effective pollution D. Pollutants

cho p/t x^2 - 2(m-1)x +m^2 -6 =0 tìm m t/m : x1^2 + 4x1 +2x2 +2x1 =53

1. A. went B. newspaper C. west D. work 2. A. undo B. university C. unit D. unique 3. A. stops B. desks C. librarians D. equips 4. A. talked B. helped C. watched D. sounded Choose the word or phrase (A, B, C or D) that best fits the blank space in each sentence (3.0 pts) 1. If you want to save money, you should _______ the amount of electricity your family uses. A. increase B. reuse C. reduce D. recycle 2. You should have a (an) ____________ check your motorbike regularly. A. electrician B. carpenter C. mechanic D. plumber 3. ____________ clean some waste food after your refreshment? + Sorry, I’ll do it soon. A. Because of B. Why don’t you C. Let’s D. Though 4. Shall we make some decorations for our classroom at Tet holidays, guys? + ____________ A. Great! Let’s do that. B. Well done. C. Thanks. It’s my job. D. No problem for a need! 5. In order to save money, we should use public transport__________ motorbike. A. instead of B. except C. besides D. along with 6. In recent years, ________ has seriously made the climate change in many parts of the world. A. water pollution B. recycling C. environment D. deforestation 7. The TV is still on. You must __________ when you leave your room. A. turn off it B. with it off C. turn it off D. turn off with it 8. An enormous amount of money has been wasted on this project A. very large B. very limited C. very small D. very important 9. A: Shall we raise money to help students in the flooded area? B: ___________________. A. Exactly B. How interesting! C. Great idea D. I’m sure for that 10. It is possible to store solar energy _________a number of days. A. with B. for C. on D. at 11. The picture asks: A. Do not save the water B. The faucet needs to repair immediately C. Do not let the faucet that is dripping D. It is the dripping faucet 12. The picture says: A. Keep calm and save money B. Turn on the light C. Turn off the light D. Waste electricity

Các bạn giải giúp mình nhé !

Giúp mình với ạ꒰⑅ᵕ༚ᵕ꒱˖♡꒰⑅ᵕ༚ᵕ꒱˖♡

Viết đoạn văn về sở thích nấu ăn ( ko copy mạng )

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Dịch theo ý hiểu không dùng bất cứ trang web để dịch như gg dịch hay các app trang mạng khác. Dịch theo ý hiểu nhưng không có nghĩa là dịch sơ Sài nha. Mà phải đúng

Giúp em câu này vs, em cám ơn Tìm GTLN `A = sqrt { 8 + 2x - x^2 }`

dẫn 1,344l CO2 đktc vào 50ml Ca(OH)2 1M a, Viết các pt phản ứng xảy ra b, Tính khối lượng CaCO3 bị hoà tan c, Tính thể tích CO2 để kết tủa thực đại giúp mình với !!!