第 1 題
1 分Which of the following is the primary goal of the disinfection stage (e.g., chlorination or UV irradiation) in modern sewage treatment?
高中 (HKDSE) · 生物
污染控制：練習題
5 條多項選擇題即時批改，另有 2 條文字題附完整解題步驟，全部圍繞「污染控制」。
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第 2 題
1 分A persistent organic pollutant is absorbed by a single organism, such as a large predatory fish, and its concentration in the tissues increases over the organism's lifespan. This process, concerning the accumulation within one trophic level, is specifically termed:
第 3 題
1 分An increased level of degradable organic pollution in a river ecosystem is most accurately indicated by which pair of changes?
第 4 題
1 分Exposure to high concentrations of fine particulate matter ( \( \text{PM}_{2.5} \)) in polluted air poses a significant health risk. Biologically, the primary concern regarding these particles is that they:
第 5 題
1 分Which sequence of events correctly explains why severe eutrophication often leads to widespread fish mortality (fish kill) in an aquatic environment?
第 6 題
5 分How does the integration of biological nitrogen removal in sewage treatment plants utilize the metabolic diversity of bacteria to prevent eutrophication, and why is this stage critical even after organic matter has been decomposed?
先自己寫一次答案，再對照解題步驟。
第 7 題
5 分Effective waste management is crucial for environmental sustainability and is often guided by the '3 R's' principle.
(a) Briefly explain the '3 R's' principle (Reduce, Reuse, Recycle) in waste management. For each 'R', provide one specific, distinct example of how it can be applied in daily life.
(b) Discuss one environmental benefit of large-scale recycling of materials (e.g., plastics or metals) compared to their disposal in landfills, considering resource consumption or pollution.
先自己寫一次答案，再對照解題步驟。
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