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  3. According to World Health Organization, how many people am killed by outdoor air pollution? According to the passage, land can

According to World Health Organization, how many people am killed by outdoor air pollution? According to the passage, land can

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问题 According to World Health Organization, how many people am killed by outdoor air pollution?
According to the passage, land can be polluted by ______ from agriculture.
选项 A、heavy metals
B、pesticides and nitrate-poor fertilizers
C、slurry from livestock
D、rubbish
答案C
解析 根据题干信息词land can be polluted定位到第五段第三句话。即：来自农业的杀虫剂(pesticides)、富含硝酸盐的化肥(nitrate-rich fertilizers)以及家畜带来的泥浆(slurry from livestock)都会污染土地，故选C。
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