1. Trees can regulate our climate, maintaining ecological balance. Trees through photosynthesis, they absorb carbon dioxide, oxygen spit, Clean air, fresh. 65 acre forest emit eno
2. Fixing trees can, conserve soil and water, but also to all kinds of dust. an acre of trees can absorb all kinds of dust 20-60 tons a year. ugh oxygen breathing.
3. Mangroves can reduce noise pollution. 40-meter-wide tree belt noise can be reduced 10 to 15 decibels.
4. Bacteria can kill trees secretions.
翻译：
1.树木能调节气候,保持生态平衡.树木通过光合作用,吸进二氧化碳,吐出氧气,使空气清洁,新鲜.一亩树林放出的氧气够65人呼吸.
2.树能防风固沙,涵养水土,还能吸收各种粉尘,一亩树林一年可吸收各种粉尘20—60吨.
3.树林能减少噪音污染.40米宽的林带可减弱噪音10—15分贝.
4.树木的分泌物能杀死细菌