1. (2022六下·宝山期末)  找出左右栏中相关的项目并用线连起来

 氧气                                                     灌注在霓虹灯内

 二氧化碳                                               制冷剂

 稀有气体                                               保持大气的湿度

 液态氮气                                               供给呼吸

 水汽                                                     过量会加剧温室效应