Video PlayerClose
Pupils learn knowledge on earth at a primary school in Handan City, north China's Hebei Province, April 20, 2018. Activities were held across China to greet the upcoming Earth Day which falls on April 22. (Xinhua/Hao Qunying)
Pupils learn knowledge on earth at a primary school in Handan City, north China's Hebei Province, April 20, 2018. Activities were held across China to greet the upcoming Earth Day which falls on April 22. (Xinhua/Hao Qunying)