Pollution Knowledge-Based Practice

Questions

1. 1.

   Which of the following is classified as a secondary air pollutant that forms when nitrogen oxides and volatile organic compounds react in the presence of sunlight, damaging plant tissues and causing respiratory distress in animals?

   • A) Carbon monoxide
   • B) Tropospheric ozone
   • C) Sulfur dioxide
   • D) Lead particulate
2. 2.

   Which of the following statements correctly describes the primary ecological impact of thermal pollution resulting from the discharge of industrial cooling water into aquatic ecosystems?

   • A) It causes widespread salinization by accelerating the evaporation of freshwater reserves.
   • B) It converts dissolved carbon dioxide into toxic methane hydrates near the water surface.
   • C) It drastically increases water acidity by precipitating atmospheric sulfur compounds.
   • D) It decreases the solubility of dissolved oxygen while elevating the metabolic oxygen demand of aquatic organisms.
3. 3.

   Which pair of air pollutants reacts with atmospheric water vapor to form acid precipitation, which alters soil chemistry and severely impacts aquatic biodiversity?

   • A) Chlorofluorocarbons and carbon monoxide
   • B) Methane and tropospheric ozone
   • C) Sulfur dioxide and nitrogen oxides
   • D) Carbon dioxide and particulate matter
4. 4.

   Which environmental process occurs when excessive runoff of agricultural fertilizers rich in nitrates and phosphates enters an aquatic ecosystem, ultimately causing severe dissolved oxygen depletion?

   • A) Biomagnification
   • B) Ocean acidification
   • C) Eutrophication
   • D) Photochemical smog
5. 5.

   Which of the following processes describes the increasing concentration of persistent, non-biodegradable pollutants in the tissues of organisms at successively higher trophic levels within a food web?

   • A) Biomagnification
   • B) Bioaccumulation
   • C) Eutrophication
   • D) Bioremediation

Answers and step-by-step solutions appear after you finish the test.