【题目】二氧化碳引起的全球“温室效应”会产生（ ）
A. 气候变化B. 臭氧层空洞C. 降水量增多D. 全球气温上升
【答案】D
【解析】
根据全球变暖是指全球气温升高。近一百多年来，全球平均气温经历了冷暖冷暖两次波动，总体为上升趋势。全球变暖的主要原因是人类在近一个世纪以来大量使用矿物燃料，排放大量的温室气体。全球变暖的后果，会使全球降水量重新分配，冰川和冻土消融，海平面上升等，既危害自然生态系统的平衡，更威胁人类的食物供应和居住环境，进行分析解答。
人类生活在地球上，与生存环境之间是相互联系、相互依存、相互制约的，形成一个统一的不可分割的整体。近一个世纪以来，人们在日常生产和生活中通过燃烧化石燃料释放大量的二氧化碳等温室气体。近年来，主要温室气体的排放量不断增加，引起温室效应增强，使全球气候变暖；另一面，砍伐森林、耕地减少等土地利用方式的改变间接改变了大气中温室气体的浓度，也可使气候变暖。故选：D。
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