Water Pollution
Chemistry ⇒ Environmental Chemistry
Water Pollution starts at 9 and continues till grade 12.
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See sample questions for grade 12
A river receives untreated sewage from a nearby town. Explain the likely changes in BOD and DO levels downstream.
Describe how microplastics contribute to water pollution and their impact on aquatic ecosystems.
Describe one method for the removal of heavy metals from industrial wastewater.
Describe the impact of thermal pollution on aquatic life.
Describe the role of government regulations in controlling water pollution.
Explain how pesticides used in agriculture can lead to water pollution.
Explain the difference between point source and non-point source water pollution.
Explain the effect of water pollution on the food web in aquatic ecosystems.
Explain the role of wetlands in controlling water pollution.
Explain the term 'bioaccumulation' in the context of water pollution.
Explain the term 'biochemical oxygen demand' (BOD) and its significance in water pollution studies.
List three major sources of groundwater pollution.
Name two diseases that can be caused by drinking polluted water.
State two chemical indicators of water pollution.
