Aquatic & Terrestrial Pollution
How does eutrophication affect the pH of aquatic ecosystems?
It can lead to acidification due to increased bacterial activity
It increases pH levels, promoting alkaline conditions
It depends on the specific nutrients involved in eutrophication
It has no significant impact on pH
What is one negative impact of eutrophication on aquatic ecosystems?
Decreased primary productivity
Formation of harmful algal blooms
Enhanced dissolved oxygen levels
Promotion of aquatic biodiversity
What long-term implication might result when a freshwater lake undergoes eutrophication at an accelerated rate due primarily to agricultural runoff?
Urban development expands along shores once pristine lakefronts transform into rich habitats supporting new forms flora & fauna.
Drinking water shortages occur as purification becomes more difficult following algae bloom die-offs and subsequent toxin release into the water supply system.
Thermal energy production increases efficiency since warmer eutrphic waters enhance cooling processes for power plants situated nearby such bodies of freshwaters.
Wildlife diversity around lakeshore regions flourishes owing nutritional surplus provided by persistent phytoplankton growths within lake ecosystems.
What effect does eutrophication have on dissolved oxygen levels in water bodies?
Keeps it constant because oxygen production and consumption balance out.
Decreases it due to increased bacterial decomposition of dead algae.
Fluctuates daily as oxygen levels are solely dependent on temperature changes.
Increases it as more plants produce oxygen through photosynthesis.
How might the process of eutrophication in a freshwater lake influence local fishing economies?
It may increase fish populations by providing more nutrients and boosting the economy.
Eutrophication can lead to clearer waters, increasing recreational fishing and economic gain.
It could decrease fish populations due to hypoxic conditions, leading to economic decline.
The process typically leads to lower fish market prices due to increased algae growth.
What is a potential consequence of eutrophication in freshwater bodies?
Promotion of balanced nutrient cycling
Loss of recreational value due to foul odors and algal scum
Increased availability of drinking water resources
Decreased abundance of aquatic vegetation
What indirect consequence might result from eutrophic conditions that lead to dead zones in coastal waters?
Tourism declines as beaches close and recreational fishing suffers due to lower fish populations.
More real estate development occurs as waterfront properties become less desirable for habitation.
Water treatment costs decrease because algae act as a filter for pollutants already present in the water column.
Local air quality improves as fewer boats are used for transportation and recreation in these areas.

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Why are phosphorous-free detergents considered better for aquatic health?
Reduce microfiber release
Increase water hardness
Limit nutrient pollution
Enhance cleaning power
Which process occurs when a body of water becomes overly enriched with nutrients, leading to excessive plant growth and oxygen depletion?
Eutrophication
Desalination
Thermal stratification
Bioaccumulation
Which outcome most likely contradicts the initial intent of fertilizer application in agricultural practices due to nutrient runoff leading to eutrophication?
Decreased biodiversity in aquatic systems downstream.
Enhanced crop yields on the agricultural land.
Improved economic returns for farmers utilizing fertilizers.
Increased soil fertility in the farmed area.