活动过程一、调查前的准备（一）动员发动 :同学们 ,人与环境息息相关 ,人因环境存、环境因人变。本来优美的环境因人为破坏 ,如毁林开山 ,围海造田 ,排放污气、污水 ,乱丢固体废弃物 ,使人类赖以生存的基础在渐渐失去。水源枯竭 ,物种灭绝 ,土地沙化 ,大气质量严重下降 ,资源 Activity process First, the investigation before the preparation (a) Mobilization mobilization: students, people and the environment are closely related to people due to the environment, the environment changed. Originally a beautiful environment has been destroyed by vandalism, such as deforestation, land reclamation, sewage discharge, sewage and littering solid waste, so that the basis for the survival of mankind is gradually losing. Water depletion, species extinction, land desertification, a serious decline in air quality, resources