2/2:세계습지의날,3/22:물의날,4/22:지구의날,4/26:체르노빌참사,4/29:골프없는날,5/31:세계금연의날,바다의날,6/5:환경의날,6/17:사막화방지의날,7/11:세계인구
당신은 어느 그룹입니까?