A. industrially polluted soils B. once they entered the food chain. C. naturally polluted soils D. the geology and geochemistry

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问题 A. industrially polluted soils
B. once they entered the food chain.
C. naturally polluted soils
D. the geology and geochemistry of the environments
E. the element of iodine
F. not found so far
The chemistry and health of plants, animals and people might be affected by______.

选项

答案D

解析 本句应定位在第二段中“Thus the geology and geochemistry of the environments haveeffects on the chemistry and health of plants,animals and people.”把句子改为被动语态,即可找出答案。
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