Exploring the Impact of Water Pollution

The video discusses water pollution, its history, types, and effects on ecosystems and health. It covers point, non-point, and groundwater pollution, highlighting major pollutants like wastewater and chemicals. The video also explains the impact of pollution, such as dead zones and disease spread, and outlines regulations and technologies for cleanup, including the Clean Water Act and sewage treatment systems.

What event in 1969 brought significant attention to water pollution?

• The Great Lakes oil spill

• The Cuyahoga River fire

• The Mississippi River flood

• The Hudson River contamination

Tags

NGSS.HS-LS2-7

Which type of water pollution comes from a single identifiable source?

• Diffuse pollution

• Point source pollution

• Groundwater pollution

• Non-point source pollution

What is the major pollutant in water pollution?

• Industrial chemicals

• Waste water

• Plastic debris

• Thermal discharge

Tags

NGSS.HS-LS2-7

What does Biochemical Oxygen Demand (BOD) measure?

• The amount of bacteria in water

• The level of nutrients in water

• The temperature of the water

• The oxygen required by bacteria to decompose organic matter

What can high BOD levels in water lead to?

• Increased fish population

• Higher water temperature

• Dead zones

• Reduced algae growth

Tags

NGSS.HS-LS2-3

Which of the following is NOT a chemical pollutant?

• Mercury

• Sediment

• Arsenic

• Lead

What is a common consequence of eutrophication?

• Reduced nutrient levels

• Decreased water temperature

• Algae blooms

• Increased water clarity

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-6

Which act regulates the amount of pollutants in the water supply?

• The Safe Drinking Water Act

• The Clean Air Act

• The Clean Water Act

• The Endangered Species Act

What is the primary purpose of a septic system?

• To prevent soil erosion

• To filter drinking water

• To store rainwater

• To treat sewage

What is a major problem with water purification systems?

• They do not remove bacteria

• They can lead to downstream pollution

• They remove essential minerals from water

• They are too expensive to operate