Water Pollution
Chemistry ⇒ Environmental Chemistry
Water Pollution starts at 9 and continues till grade 12.
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See sample questions for grade 10
A river near a city receives untreated sewage and shows a sudden decrease in fish population. What is the most likely cause?
A sample of river water has a high Biological Oxygen Demand (BOD). What does this indicate about the water quality?
Calculate the concentration of a pollutant if 0.5 grams of the pollutant is dissolved in 2 liters of water. Express your answer in g/L.
Describe the role of wetlands in controlling water pollution.
Describe two ways in which oil spills can harm aquatic life.
Explain how water pollution can impact the economy of a region.
Explain the difference between point source and non-point source water pollution.
Explain the process of biomagnification and how it relates to water pollution.
Explain why dissolved oxygen is important for aquatic life.
List two major effects of water pollution on human health.
