Environmental Studies ยท General Awareness

Water Quality and Pollution

1,263 Questions

Water Quality and Pollution examines the sources, mechanisms, and impacts of contaminants in aquatic ecosystems. It covers crucial environmental concepts like eutrophication, biochemical oxygen demand, and thermal pollution. This subject frequently appears in general science and environmental studies sections of various examinations.

Eutrophication CausesThermal Pollution EffectsBiochemical Oxygen DemandSynthetic Fertilizer ImpactsWastewater SourcesAquatic Ecosystem Toxicity

Water Quality and Pollution Questions

Multiple choice

Which of the following is NOT a benefit of biodiversity in water filtration?

  1. Improved water quality

  2. Reduced costs

  3. Increased energy efficiency

  4. Increased greenhouse gas emissions
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Increased greenhouse gas emissions is not a benefit of biodiversity in water filtration. Improved water quality, reduced costs, and increased energy efficiency are all benefits of biodiversity in water filtration.

Multiple choice

Which of the following is NOT an example of a biodiversity-based water filtration system?

  1. Constructed wetlands

  2. Sand filters

  3. Activated carbon filters

  4. Bioretention basins
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Activated carbon filters are not an example of a biodiversity-based water filtration system. Constructed wetlands, sand filters, and bioretention basins are all examples of biodiversity-based water filtration systems.

Multiple choice

What is the effect of increasing carbon dioxide levels on the bicarbonate ion concentration in seawater?

  1. The bicarbonate ion concentration decreases

  2. The bicarbonate ion concentration increases

  3. The bicarbonate ion concentration remains the same

  4. The bicarbonate ion concentration fluctuates
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Increasing carbon dioxide levels in the atmosphere lead to an increase in the concentration of carbonic acid in seawater, which causes the bicarbonate ion concentration to increase.