本题目来源于试卷: SL/HL Topic D4.2 Stability and change，类别为 IB生物学
[单选题]
4. Why does leaching of nityc-6fooj k6 1rrogen and phospha z6dt8cy1yo:,clywaycz d29;te fertilisers lead to an increase the Biochemical Oxygen Demand (BOD) of local freshwater ecosystems ( ,dyz:;dl62yy 8t9c wc1 yaozclakes and rivers)?
A. It increases the rate of photosynthesis of producers.
B. It decreases the population of producers.
C. It increases the population of saprotrophs.
D. It deceases the fish populations.
参考答案: C
本题详细解析:
暂无
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