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Earth Hour: A long-term activity initiated by the World Wide Fund for Nature has naturally entered our field of vision. The marketing activity "Earth Hour" is held on the last Saturday of March every year, inviting people to turn off their lights for one hour. Shanghai Housing Society, Kongjiang Housing Society, Changning International School and Singapore International School jointly responded to the call and held the "Earth Hour Photography Exhibition". Participants took part in this year's Earth Hour and captured unforgettable moments with their cameras. A boy from the Shanghai Housing Society said, "I'm right. I've never been without a light for an hour at night. The candles I expect can create a comfortable atmosphere." Now I know how important it is to use our lights and electricity. "I think this will be a valuable resource and less harmful to the environment," said a girl from the Jiangjiang Housing Association. . We hope this event can last for a long time and raise environmental awareness.