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Environmental chemistry - Test
Contributed by: Barron
  • 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) Excessive fishing
B) Plastic pollution
C) Oil spills
D) Absorption of carbon dioxide
  • 2. What is the major greenhouse gas produced by agriculture?
A) Methane
B) Ozone
C) Sulfur dioxide
D) Carbon monoxide
  • 3. Which chemical is responsible for the depletion of the ozone layer?
A) Hydrogen peroxide
B) Lead
C) Sulfur dioxide
D) Chlorofluorocarbons (CFCs)
  • 4. Which heavy metal is a common pollutant due to activities like mining and smelting?
A) Zinc
B) Lead
C) Aluminum
D) Copper
  • 5. How does acid rain form?
A) From excessive sunlight exposure
B) By industrial noise pollution
C) When sulfur dioxide and nitrogen oxides react with water vapor in the atmosphere
D) Due to volcanic eruptions
  • 6. What is eutrophication?
A) Excessive nutrients causing algal blooms and oxygen depletion in water bodies
B) Overfishing
C) Civil unrest in coastal regions
D) Climate change
  • 7. What role do wetlands play in environmental chemistry?
A) Natural filters for pollutants and carbon sequestration
B) Decreasing biodiversity
C) Producing greenhouse gases
D) Accelerating soil erosion
  • 8. How do endocrine-disrupting chemicals affect ecosystems?
A) They strengthen predator-prey relationships
B) They improve nutrient cycling
C) They enhance growth of plants
D) They interfere with hormonal systems of organisms
  • 9. How do nitrogen oxides contribute to air pollution?
A) By preventing greenhouse effect
B) By reducing ozone formation
C) By promoting marine life
D) By forming smog and acid rain
  • 10. What term describes a medium affected by pollutants?
A) Sink.
B) Receptor.
C) Carrier.
D) Source.
  • 11. Which environmental chemist is known for their work on the Keeling Curve?
A) Charles David Keeling
B) Paul Crutzen
C) Ralph Keeling
D) Mario Molina
  • 12. Which analytical technique is used to regulate PAHs?
A) Chemical synthesis.
B) Chromatography laboratory testing.
C) Simple visual inspection.
D) Spectroscopy without chromatography.
  • 13. What is the significance of understanding an uncontaminated environment?
A) To focus only on synthetic chemicals.
B) To eliminate all natural chemicals.
C) To ignore natural chemical concentrations.
D) To study human impact on the environment accurately.
  • 14. Which method is used for the measurement of organic compounds like PAHs?
A) Gravimetric methods
B) Electrochemical methods
C) Titrimetric methods
D) Mass spectrometric methods
  • 15. Which method is used for the assay of radioactive materials?
A) Scintillation counter
B) Liquid chromatography (LC)
C) Gas chromatography (GC)
D) Atomic Absorption Spectrophotometry (AAS)
  • 16. Which method is used to measure radioactive materials by counting particles?
A) Atomic Absorption Spectrophotometry (AAS)
B) Gas chromatography (GC)
C) Liquid chromatography (LC)
D) Particle counters
  • 17. Which of these is a typical pollutant from urban runoff?
A) Carbon dioxide absorbed by plants.
B) Motor oil.
C) Phosphorus in its natural state.
D) Dissolved oxygen.
  • 18. Which technique offers sub part per trillion detection for organic compounds?
A) Atomic Absorption Spectrophotometry (AAS)
B) High Resolution/Accurate Mass spectrometry (HR/AM)
C) Inductively Coupled Plasma Atomic Emission (ICP-AES)
D) Gravimetric methods
  • 19. Who among the following is a Nobel Prize-winning environmental chemist?
A) Susan Solomon
B) Mario Molina
C) Ellen Swallow Richards
D) John M. Hayes
  • 20. Which Nobel Prize-winning chemist is known for their contributions to environmental chemistry?
A) Sherry Roland
B) Ralph Keeling
C) Charles David Keeling
D) John Tyndall
  • 21. Which technique offers sub part per trillion detection for organic compounds using tandem mass spectrometry?
A) Inductively Coupled Plasma Atomic Emission (ICP-AES)
B) Gravimetric methods
C) Atomic Absorption Spectrophotometry (AAS)
D) Tandem Mass Spectrometry (MS/MS)
  • 22. What technique is used to identify species of bacteria through DNA and RNA gene isolation?
A) Scintillation counter
B) Polymerase Chain Reaction (PCR)
C) Gas chromatography-mass spectrometry (GC/MS)
D) Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
  • 23. Which Nobel Prize-winning chemist is known for their work in environmental chemistry?
A) Paul Crutzen
B) John Tyndall
C) Ralph Keeling
D) Clair Patterson
  • 24. Which analytical technique is not typically used for the determination of trace metals?
A) Inductively Coupled Plasma Atomic Emission (ICP-AES)
B) Inductively Coupled Plasma Mass Spectrometric (ICP-MS)
C) Atomic Absorption Spectrophotometry (AAS)
D) Gas chromatography-mass spectrometry (GC/MS)
  • 25. Which environmental chemist is known for their work on lead contamination?
A) Clair Patterson
B) Paul Crutzen
C) Mario Molina
D) Sherry Roland
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