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Worksheet Chapter 10: Environmental Sustainability

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 · 2m

2. Which method is an example of ex-situ conservation?

Multiple Choice · 1m
  1. A. Taman Negara National Park
  2. B. Sepilok Orangutan Rehabilitation Centre in a virgin forest
  3. C. Seed banks stored in cryogenic facilities
  4. D. Turtle sanctuary protected beach

3. Explain two green technology practices that can be implemented in urban areas to reduce carbon footprint and promote environmental sustainability.

Short Answer · 4m

4. Describe step-by-step how an agricultural runoff event leads to the death of fish in a nearby lake via eutrophication.

Short Answer · 4m

5. True or False: A high Biochemical Oxygen Demand (BOD) value indicates that a water sample is clean and unpolluted.

True / False · 1m

6. 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 · 1m

7. Explain the relationship between BOD level and dissolved oxygen concentration in a polluted river.

Short Answer · 2m

8. True or False: Thermal pollution increases the solubility of dissolved oxygen gas in river water.

True / False · 1m

9. Differentiate between in-situ conservation and ex-situ conservation, providing one example for each.

Short Answer · 3m

10. Explain how acid rain is formed and describe two of its detrimental effects on the environment.

Short Answer · 3m
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