Form 5 Biology Bab 10: Environmental Sustainability
Instructions
Answer all structured, objective, and short-answer questions based on Chapter 10: Environmental Sustainability.
10 questions · 22 marks total
1. Define the term 'eutrophication' and name one main human activity that causes it.
Short Answer · 2m2. Which method is an example of ex-situ conservation?
Multiple Choice · 1m3. Explain two green technology practices that can be implemented in urban areas to reduce carbon footprint and promote environmental sustainability.
Short Answer · 4m4. Describe step-by-step how an agricultural runoff event leads to the death of fish in a nearby lake via eutrophication.
Short Answer · 4m5. True or False: A high Biochemical Oxygen Demand (BOD) value indicates that a water sample is clean and unpolluted.
True / False · 1m6. Fill in the blank: The progressive accumulation and increase in concentration of non-biodegradable toxic chemicals along successive trophic levels is called ________.
Fill in the Blank · 1m7. Explain the relationship between BOD level and dissolved oxygen concentration in a polluted river.
Short Answer · 2m8. True or False: Thermal pollution increases the solubility of dissolved oxygen gas in river water.
True / False · 1m9. Differentiate between in-situ conservation and ex-situ conservation, providing one example for each.
Short Answer · 3m10. Explain how acid rain is formed and describe two of its detrimental effects on the environment.
Short Answer · 3m