Water Pollution U4, L3

What is the major pollutant that leads to water pollution?

• Sediment

• Solid waste

• Chemicals

• Waste water

What is used to measure the amount of oxygen consumed by decomposing bacteria in waste water?

• Dissolved oxygen demand

• Biochemical oxygen supply

• Oxygen consumption level

• Biochemical oxygen demand

What can lead to the creation of dead zones in water bodies?

• Algae bloom

• Decreased oxygen levels

• Eutrophication

• Thermal pollution

Tags

NGSS.MS-LS2-1

Which of the following is not a type of water pollution?

• Groundwater pollution

• Non-point source pollution

• Air pollution

• Point pollution

What is the process used to treat sewage in a septic system?

• Filtration

• Aeration

• Digestion

• Leaching

What is the most famous regulation for controlling water pollution in the US?

• Environmental Protection Act

• Water Pollution Control Act

• Clean Water Act

• Safe Drinking Water Act

What can lead to water pollution as a non-chemical pollutant?

• Oil

• Pesticides

• Metals

• Sediment

What is the main method used to clean up water pollution?

• Water purification

• Sewage treatment

• Septic systems

• Regulation and technology

Tags

NGSS.MS-ETS1-2