The effects of acid rain can be devastating (破坏性的)
to many forms of life, including human life. Its effects can be most vividly
(生动地, 鲜明地)
seen, however, in lakes, rivers, and streams and on vegetation (植被,植物)
. Acidity (酸性)
in water kills virtually (实质上)
all life forms. By the early 1990s tens of thousands of lakes had been destroyed by acid rain. The problem has been most severe
(严重的)
in Norway, Sweden, and Canada.
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Acid
rain damage to trees atop Mt. Mitchell in
the Blue Ridge Mountains of
western North Carolina, the highest point in the state. Even
the fog that frequently blankets the top of the mountain usually
contains pollutants (污染物质)which cause further damage to the trees.
百科知识
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Nor are the destructive
(破坏性的)
effects of acid rain limited to the natural environment. Structures (建筑物)
made of stone, metal, and cement have also been damaged or destroyed. Some of the world's
great monuments, including the cathedrals
(大教堂)
of Europe and
the Colosseum (罗马圆形大剧场)
in Rome, have shown signs of
deterioration (变坏, 退化)
caused by acid rain.
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