Water pollution - Quiz
Water pollution
  • 1. Which types of ecosystems can be degraded by water pollution?
A) Only freshwater systems
B) Only deep ocean environments
C) Freshwater, coastal, and ocean waters
D) Only coastal ecosystems
  • 2. What determines whether a naturally occurring substance is a contaminant?
A) Its concentration
B) Its weight
C) Its chemical color
D) Its smell
  • 3. Which of these is an example of an oxygen-depleting substance?
A) Clean sand
B) Pure oxygen
C) Plant matter
D) Filtered salt
  • 4. What effect does turbidity have on aquatic plants?
A) It blocks light and disrupts growth
B) It provides essential nutrients
C) It increases photosynthesis rates
D) It clarifies the water
  • 5. What is a negative impact of turbidity on fish?
A) It clogs their gills
B) It increases their appetite
C) It promotes faster swimming
D) It improves their vision
  • 6. According to a 2017 study, how many people were killed by waterborne diseases?
A) 500,000
B) 250,000
C) 1.8 million
D) 10 million
  • 7. What kind of diseases are spread by polluted water?
A) Genetic disorders
B) Airborne respiratory diseases
C) Gastrointestinal and parasitic
D) Skin allergies only
  • 8. What is a long-term health risk of persistent exposure to water pollutants?
A) Increased physical strength
B) Better immunity
C) Improved vision
D) Development of cancer
  • 9. What is the primary cause of eutrophication in lakes?
A) Water purification
B) Temperature drops
C) Nitrogen pollution
D) Oxygen injection
  • 10. What does eutrophication increase in an ecosystem?
A) Oxygen saturation
B) Primary productivity
C) Water transparency
D) Fish lifespan
  • 11. What is the term for oxygen depletion in an ecosystem?
A) Anoxia
B) Contamination
C) Turbidity
D) Acidification
  • 12. What causes ocean acidification?
A) Increase in water temperature
B) Absorption of nitrogen
C) Excessive fish populations
D) Uptake of carbon dioxide
  • 13. Ocean acidification is defined as a decrease in what?
A) Oxygen levels
B) Water volume
C) Salinity levels
D) pH value
  • 14. Which regions are affected by water pollution?
A) Only landlocked nations
B) Only developed countries
C) Only developing countries
D) Both developing and developed countries
  • 15. Approximately what percentage of water in Chinese cities is polluted?
A) 50 percent
B) 90 percent
C) 10 percent
D) 25 percent
  • 16. What is a primary source of nutrient pollution in water from agriculture?
A) Heavy metals
B) Carbon dioxide
C) Irrigation pipes
D) Fertilizers
  • 17. Besides fertilizers, what does agricultural runoff frequently contain?
A) Pesticides
B) Surfactants
C) Volcanic ash
D) Microbial cells
  • 18. What process involves pollutants settling from the air into water bodies?
A) Ocean acidification
B) Air deposition
C) Surface runoff
D) Biological monitoring
  • 19. Which of these is a natural source of air deposition?
A) Industrial factories
B) Power plants
C) Agricultural feedlots
D) Forest fires
  • 20. Which test can be conducted in situ without collecting a sample?
A) Pesticide concentration
B) Temperature
C) Total suspended solids
D) Chemical oxygen demand
  • 21. Which of these is a common physical test for water?
A) Biological oxygen demand
B) PH level
C) Mercury content
D) Turbidity
  • 22. What is the term for using organisms to monitor the health of an aquatic ecosystem?
A) Standardized laboratory analysis
B) Biological monitoring
C) Physical assessment
D) Chemical quantification
  • 23. Which organisms are mentioned as examples of bio-indicators?
A) Copepods
B) Nitrogen plants
C) Sulfur bacteria
D) Industrial surfactants
  • 24. What is a natural source of nitrogen oxides in the atmosphere?
A) Ocean acidification
B) Forest fires
C) Lightning strikes
D) Fish-farming
  • 25. Which parameter measures the amount of oxygen required for chemical decomposition in water?
A) Total suspended solids
B) Chemical oxygen demand (COD)
C) Specific conductance
D) Electrical conductivity
  • 26. What is a major source of mercury compounds in water pollution?
A) Industrial air deposition
B) Agricultural pesticides
C) Surface runoff from feedlots
D) Natural volcanic activity
  • 27. Since what year have governments made efforts to reduce acid rain emissions?
A) 1970s
B) 1950s
C) 1850s
D) 1990s
  • 28. Which of the following is cited as an example of a point source of pollution?
A) Atmospheric dust
B) Natural underground springs
C) City storm drains
D) Oceanic currents
  • 29. What environmental phenomenon is caused by the nutrients found in sewage?
A) Global warming
B) Desertification
C) Ozone depletion
D) Eutrophication
  • 30. When does a sanitary sewer overflow typically occur?
A) Only on weekends
B) During storm events
C) When water consumption is low
D) During winter droughts
  • 31. Which U.S. law regulates point source water pollution?
A) Clean Water Act
B) Environmental Protection Act
C) Industrial Discharge Code
D) Water Conservation Treaty
  • 32. Which of the following is a heavy metal pollutant mentioned in the text?
A) Nitrogen
B) Oxygen
C) Calcium
D) Mercury
  • 33. What category of pollutants includes polyethylene and polypropylene beads?
A) Microplastics
B) Radionuclides
C) Nutrients
D) Inorganic particles
  • 34. Which of the following industries is a main consumer of water in the U.S.?
A) Petroleum refineries
B) Wind energy
C) Solar panel manufacturing
D) Textile printing
  • 35. In what year was the Clean Water Act definition of point source amended to include municipal storm sewer systems?
A) 1987
B) 2005
C) 1972
D) 1999
  • 36. Which substance is specifically mentioned as a source of phosphate?
A) Sewage
B) Sand
C) Thermal energy
D) Rainwater
  • 37. Which of the following is considered an inorganic particle pollutant?
A) Hormones
B) Plant material
C) Pharmaceutical drugs
D) Rubber residues from tires
  • 38. What type of pollution comes from nuclear fuel processing?
A) Organic matter
B) Microplastics
C) Radionuclides
D) Thermal pollution
  • 39. What percentage of ocean microplastics originates from textiles and clothing?
A) 25%
B) 16%
C) 35%
D) 80%
  • 40. What is the primary reason that increased water temperatures lower oxygen levels?
A) Higher evaporation rates
B) Increased metabolic rates of fish
C) Thermal expansion of water
D) Gases are less soluble in warmer liquids
  • 41. What percentage of global microplastic discharge into the seas comes from Europe and Central Asia as of 2022?
A) 35%
B) 25%
C) 80%
D) 16%
  • 42. What is a major consequence of thermal pollution in aquatic ecosystems?
A) Decreased number of invasive species
B) Increased oxygen levels
C) Improved water clarity
D) Reduced species biodiversity
  • 43. What is the primary material component of clothing that leads to microplastic pollution?
A) Leather and suede
B) Cotton and wool
C) Polyester, acrylic, or nylon
D) Silk and linen
  • 44. How many people globally lacked access to safely managed sanitation as of 2017?
A) 3 billion
B) 6 billion
C) 1.5 billion
D) 4.5 billion
  • 45. What do the three most common sources of microplastics account for in total contamination?
A) Over 80%
B) Under 20%
C) Exactly 50%
D) Approximately 40%
  • 46. Which of these is a common indicator used for fecal contamination in water?
A) Schistosoma
B) Total coliforms
C) Burkholderia pseudomallei
D) Cryptosporidium
  • 47. What is another name for fecal coliforms?
A) Inorganic contaminants
B) Thermotolerant coliforms
C) Volatile organic compounds
D) Persistent organic pollutants
  • 48. Which of the following is identified as a pathogen in the text?
A) Trichloroethylene
B) Ammonia
C) Giardia lamblia
D) Nitrate
  • 49. What is a major cause of high pathogen levels in water bodies?
A) De-icing road salts
B) Antidepressant drugs
C) Open defecation
D) Industrial solvents
  • 50. Which of these is classified as a persistent organic pollutant?
A) PFAS
B) Ammonia
C) Motor oil
D) Road salt
  • 51. Where does ammonia as a water pollutant typically come from?
A) Petroleum fuels
B) Construction sites
C) Food processing waste
D) Road de-icing
  • 52. What is the primary source of heavy metals in urban storm water runoff?
A) Pharmaceutical drugs
B) Motor vehicles
C) Food processing
D) Livestock operations
  • 53. What term refers to the human-induced process of salty runoff contaminating freshwater?
A) Secondary salinization
B) Acid mine drainage
C) Wastewater epidemiology
D) Nutrient pollution
  • 54. Which of these is an example of an inorganic water pollutant?
A) Norovirus
B) Methamphetamine
C) Nitrates
D) Gasoline
  • 55. Which of these pharmaceutical pollutants is specifically mentioned as a pollutant?
A) Contraceptive pill
B) Total coliforms
C) Schistosoma
D) Polychlorinated biphenyls
  • 56. Which of the following is an organochloride mentioned in the text?
A) Ammonia
B) Escherichia coli
C) Polychlorinated biphenyls (PCBs)
D) Nitrates
  • 57. Which of the following is considered a water body?
A) Aquifers
B) Dry desert basins
C) Mountain peaks
D) Atmospheric clouds
  • 58. What is an example of a non-point source of pollution?
A) Storm drain
B) Agricultural runoff
C) Wastewater treatment plant
D) Oil spill
  • 59. What can happen to aquatic ecosystems due to pollution?
A) Increased biodiversity
B) Stabilization
C) Rapid expansion
D) Degradation
  • 60. What is Hepatovirus A considered in the context of water pollution?
A) An industrial metal
B) A pathogen
C) A cooling agent
D) A nutrient
Created with That Quiz — the math test generation site with resources for other subject areas.