5.3 - 5.5 Quiz

Flame retardants are categorized under which type of chemical disruptor?

• Personal care products

• Industrial chemicals

• Synthetic hormones

• Pesticides

How can mercury be released from coal ash?

• Through evaporation

• If stored in ponds with overflow and runoff

• By freezing

• By direct sunlight exposure

What form does mercury convert into in water sources?

• Elemental mercury

• Methylmercury

• Organic mercury

• Inorganic mercury

What is the combined percentage of mercury production for Europe and Russia, and North America?

• 18%

• 15%

• 11%

• 13%

What are wetlands?

• Areas where water covers the soil, either part or all of the time

• Areas with no water coverage

• Dry land with occasional rain

• Mountainous regions with snow

What is the purpose of using cover crops in watershed management?

• To increase soil erosion

• To absorb nutrients

• To reduce water flow

• To enhance sedimentation

What does enhanced nutrient removal aim to achieve in watershed management?

• Increase nutrient levels

• Remove biological nutrients

• Increase sedimentation

• Enhance water flow

What is the carbon storage potential of mangroves compared to tropical upland forests?

• 1–2 times higher

• 2–4 times higher

• 3–5 times higher

• 5–7 times higher

Which of the following is a source of phosphorus in eutrophication?

• Detergents

• Carbon dioxide

• Oxygen

• Sulfur dioxide

What causes a dead zone in aquatic environments?

• Increase in dissolved oxygen

• Decrease in dissolved oxygen

• Increase in water temperature

• Decrease in water salinity