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huyenxx1601
2 năm trước
Một bóng đèn ghi 6V-12W. Mắc nối tiếp 1 ampe kế đặt trg 1 hiệu điện thé 6 V a, Tính điện trở bóng đèn b, Tính số chỉ của ampe kế c, Tính điện năng tiêu thụ của bóng đèn trg 1 h d,Nếu mắc nt bóng đèn vs 1 bóng đèn khác giống hệt thì phải sd 1 hđ thế bao nhiêu để đèn sáng bình thường ?
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Read the Earth Day passage and choose the correct True (T) or False (F) answer. Many countries around the world celebrate Earth Day. It is a day that is meant to raise awareness and appreciation of the Earth's natural environment. The first Earth Day was held in the USA. It was founded by the United States Senator Gaylord Nelson as an environmental teach-in - a sort of general educational forum or seminar. That was on April 22, 1970. While this first Earth Day was focused on the United States, an organization launched by Denis Hayes, who was the original national coordinator in 1970, took it international in 1990 and organized events in 141 nations. Earth Day is now coordinated globally by the Earth Day Network and is celebrated in more than 175 countries every year. Numerous communities celebrate Earth Week, an entire week of activities focused on environmental issues. In 2009, the United Nations designated April 22 International Mother Earth Day. ANSWER THE QUESTION: 1, The first Earth Day was celebrated around the world. __________ 2, The celebration became international thanks to Senator Gaylord Nelson. __________ 3, A few countries celebrate the Day. __________ 4, The day is now coordinated by The earth Day Network at the international level. __________ 5, Many people celebrate Earth Day to focus on environmental issues. __________

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