河南省鹤壁市高中2024届高三上学期第二次模拟考试地理
2024届高三年级第二次模拟考试·地理试卷命题人:第Ⅰ卷一.选择题(每题1.5分,1.5*36=54,共54分)海洋表层水体的pH值约为8.2,呈弱碱性。长期以来这种稳定的化学环境维持着海洋生态系统的平衡。海洋酸化(pH值降低)是全球气候变化下海洋系统面临的又一重要生态环境问题。下图为香港周边不同海域1986~2017年的年均酸碱度变化等值线图。读图,完成下面小题。1.图中海水酸化最严重的海域是( )A.①B.②C.③D.④2.图中海域海洋酸化会使( )A.贝壳类生物数量减少B.近岸的海洋污染减轻C.海水的腐蚀性会减弱D.沿海的陆地酸雨加重3.从全球范围看,引发海洋酸化的主要原因是( ...
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