Worksheet Chapter 10: Environmental Sustainability

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

2. Fill in the blank: The progressive accumulation and increase in concentration of non-biodegradable toxic chemicals along successive trophic levels is called ________.

3. Define the term 'eutrophication' and name one main human activity that causes it.

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

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

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

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

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

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

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