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truongcao2508
2 năm trước
1. hãy tìm thêm các ví dụ minh họa quan hệ hỗ trợ và đối địch của các sinh vật khác loài trong các ví dụ đó những sinh vật nào là sinh vật được lợi hay bị hại?
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A.2-Read Consumers - innovations -luxuries – replacing - bulbs – households - labeling scheme – therefore - appliances - electricity - effectively In Western countries, electricity, gas, and water are not ______________1_ but necessities. Companies now realize that ____________2_ want products that will not only work ____________3_ but also save money. For most North American___________4_ , lighting accounts for 10 percent to 15 percent of the electricity bill. However, this amount can be reduced by ___________5_ an ordinary 100-watt light bulb with an energy-saving bulb. These _________6_ use a quarter of the __________7_ of standard bulbs and last eight times longer. ____________8_ consumers can save about US7toUS21 per bulb. In Europe, there is a ________________8_ for refrigerators, freezers, washing machines, and tumble dryers. The label tells the consumers how much energy efficiency each model has, compared with other ___________9_ in the same category. Ultimately, these ____________10_will save money as well as conserve the Earth's resources

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