- 1. Environmental chemistry is the scientific study of the chemical and biochemical phenomena that occur in the environment. It involves understanding the sources, reactions, transport, effects, and fates of chemical species in air, water, soil, and living organisms. Environmental chemists strive to identify and quantify pollutants, develop ways to prevent or remediate environmental contamination, and assess the risks posed by various chemicals to human health and ecosystems. By studying the complex interactions between chemicals and the environment, environmental chemistry plays a crucial role in promoting sustainable practices and protecting the health of our planet.
What causes ocean acidification?
A) Oil spills
B) Plastic pollution
C) Absorption of carbon dioxide
D) Excessive fishing
- 2. What is the major greenhouse gas produced by agriculture?
A) Methane
B) Carbon monoxide
C) Sulfur dioxide
D) Ozone
- 3. Which chemical is responsible for the depletion of the ozone layer?
A) Chlorofluorocarbons (CFCs)
B) Lead
C) Hydrogen peroxide
D) Sulfur dioxide
- 4. How do endocrine-disrupting chemicals affect ecosystems?
A) They improve nutrient cycling
B) They strengthen predator-prey relationships
C) They interfere with hormonal systems of organisms
D) They enhance growth of plants
- 5. What is eutrophication?
A) Civil unrest in coastal regions
B) Excessive nutrients causing algal blooms and oxygen depletion in water bodies
C) Overfishing
D) Climate change
- 6. What role do wetlands play in environmental chemistry?
A) Producing greenhouse gases
B) Natural filters for pollutants and carbon sequestration
C) Decreasing biodiversity
D) Accelerating soil erosion
- 7. Which heavy metal is a common pollutant due to activities like mining and smelting?
A) Lead
B) Aluminum
C) Zinc
D) Copper
- 8. How do nitrogen oxides contribute to air pollution?
A) By preventing greenhouse effect
B) By forming smog and acid rain
C) By reducing ozone formation
D) By promoting marine life
- 9. How does acid rain form?
A) By industrial noise pollution
B) From excessive sunlight exposure
C) Due to volcanic eruptions
D) When sulfur dioxide and nitrogen oxides react with water vapor in the atmosphere
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