Pupils locate countries on a tellurion during an environment protection activity in Yumen, northwest China's Gansu Province, April 22, 2013. The environment protection activity was held to mark the World Earth Day, which falls on April 22 each year.(Xinhua/Wan Zongping)
Teachers and students make a model of giraffe using waste materials during an environment protection activity in Handan, north China's Hebei Province, April 22, 2013. The environment protection activity was held to mark the World Earth Day, which falls on April 22 each year. (Xinhua/Hao Qunying)
Photo taken on April 21, 2013 shows a girl during an environment protection activity in Beijing, capital of China. The environment protection activity was held to mark the World Earth Day, which falls on April 22 each year. (Xinhua/Yan Min)
