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Planting and Protection,2016级物一 罗俊怡,The reason,Planting trees assist in preserving soil and water, in preventing wind and sand.,Planting trees can reduce air pollution.,Planting trees can also reduce noise pollution.,soft,fertile,co2,o2,The main cause of the greenhouse effect,What can we do to plant trees so as to protect the environment,The channel,Arbor day,Alipay Ant Forest,Alipay Ant Forest,Take an active part in,the activities of afforestation and environmental protection.,Thank you for listening.,