TRB PG Assistant - Environmental chemistry: renewable energy sources, pollution effects and mitigation One Line Questions & Answers

1. Volatile Organic Compounds (VOCs) contribute to the formation of: — Ground-level ozone (smog)

2. Which type of pollution is most directly linked to the formation of 'dead zones' in coastal areas? — Water pollution from nutrient runoff

3. The process of converting solid waste into a gaseous fuel, typically hydrogen or carbon monoxide, is known as: — Gasification

4. Which of the following is a method for sequestering carbon dioxide from the atmosphere? — Afforestation and reforestation

5. The use of catalytic converters in vehicles is primarily aimed at reducing emissions of: — Carbon Monoxide, Nitrogen Oxides, and unburned hydrocarbons

6. Which gas is a precursor to the formation of acid rain and is released from burning coal? — Sulfur Dioxide (SO2)

7. Acid rain is primarily caused by emissions of which two pollutants? — Sulfur Dioxide and Nitrogen Oxides

8. Particulate matter (PM) pollution is particularly harmful because it: — Can penetrate deep into the lungs

9. The 'greenhouse effect' is a natural process that: — Traps heat in the atmosphere

10. Which gas is a major component of biogas, a renewable fuel produced from organic waste? — Methane

11. Biomass energy is derived from: — Organic matter from plants and animals

12. The process of burning organic matter to produce energy is called: — Combustion

13. Which of the following renewable energy sources has the most intermittent nature? — Solar energy

14. What is the primary challenge in relying solely on wind power for electricity generation? — The intermittent nature of wind

15. Which renewable energy source utilizes the Earth's internal heat? — Geothermal Energy

16. What is a significant environmental consequence of eutrophication in aquatic ecosystems? — Oxygen depletion and fish kills

17. The depletion of the ozone layer is primarily a concern because it leads to: — Higher rates of skin cancer and cataracts in humans

18. The primary environmental concern associated with the extraction of fossil fuels is: — Habitat destruction and pollution

19. A common mitigation strategy for mercury pollution from coal-fired power plants is: — Installing scrubbers to capture mercury

20. Which of the following is a method to mitigate the effects of eutrophication? — Reducing nutrient runoff from farms and wastewater treatment

21. Which of the following is a method for mitigating indoor air pollution? — Ensuring adequate ventilation

22. Which of the following is a mitigation strategy for reducing CO2 emissions from fossil fuels? — Increasing the efficiency of combustion

23. The primary environmental advantage of nuclear energy, compared to fossil fuels, is: — It produces no greenhouse gas emissions during operation

24. Which of the following is a major challenge in the widespread adoption of hydrogen as a fuel source? — The energy-intensive and costly production methods

25. The primary goal of sustainable energy development is to: — Meet current energy needs without compromising future generations

26. Which type of pollution can lead to the thinning of eggshells in birds, affecting reproduction? — DDT (a pesticide) pollution

27. What is the main greenhouse gas responsible for anthropogenic climate change? — Carbon Dioxide (CO2)

28. Which of the following is considered a primary renewable energy source? — Solar Radiation

29. Which process is responsible for the conversion of atmospheric nitrogen into forms usable by plants, often impacted by acid rain? — Nitrogen Fixation

30. Landfills are a source of which potent greenhouse gas? — Methane

31. Which of the following is a form of pollution that can alter the temperature of a water body, affecting aquatic life? — Thermal pollution

32. The 'Great Pacific Garbage Patch' is a prominent example of: — Marine plastic pollution

33. Hydropower generates electricity by harnessing the energy of: — Moving water

34. Ocean acidification is primarily caused by the absorption of excess: — Carbon Dioxide

35. The process of converting solar energy directly into electricity is known as: — Photovoltaic effect

36. Persistent Organic Pollutants (POPs) are concerning due to their: — Persistence in the environment, bioaccumulation, and long-range transport

37. What is the main environmental benefit of using electric vehicles powered by renewable energy? — Elimination of tailpipe emissions

38. A major health effect associated with prolonged exposure to high levels of lead pollution is: — Neurological damage, especially in children

39. Which renewable energy source involves capturing energy from the movement of air masses? — Wind energy

40. Which renewable energy source is often criticized for its impact on river ecosystems and displacement of communities? — Hydropower

41. Which renewable energy technology converts the kinetic energy of wind into electrical energy? — Wind turbines

42. Ozone depletion in the stratosphere is mainly attributed to which class of compounds? — Chlorofluorocarbons (CFCs)

43. Which pollutant is a major contributor to smog formation in urban areas? — Nitrogen Dioxide (NO2)

44. Ocean thermal energy conversion (OTEC) utilizes the temperature difference between: — Surface and deep ocean water

45. Which phenomenon describes the warming of the Earth's surface due to the trapping of infrared radiation by greenhouse gases? — The greenhouse effect

46. The 'hole' in the ozone layer is most prominent over which region? — The South Pole

47. The concept of 'carrying capacity' in environmental science refers to: — The maximum population size that an environment can sustain indefinitely

48. Which international agreement aims to reduce greenhouse gas emissions globally? — The Kyoto Protocol

49. Bioaccumulation refers to: — The accumulation of pollutants in organisms over time

50. Which renewable energy source relies on the gravitational pull of the Moon and Sun? — Tidal energy

Environmental chemistry: renewable energy sources, pollution effects and mitigation - One Line Questions