
Two students bring chairs to a temporary classroom near Mount Sinabung at Gung Pintow Village, in Karo, North Sumatra, Indonesia on July, 24. 2017. Mount Sinabung is one of Indonesia's 129 active volcanoes. (Xinhua/YT Haryono)

Two students bring chairs to a temporary classroom near Mount Sinabung at Gung Pintow Village, in Karo, North Sumatra, Indonesia on July, 24. 2017. Mount Sinabung is one of Indonesia's 129 active volcanoes. (Xinhua/YT Haryono)