8.1 Aquatic Point Source Pollution

What is a point source of pollution?

• A single, identifiable source of a pollutant.

• A widespread, non-specific source of pollution.

• A natural source of pollution.

• A temporary source of pollution.

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NGSS.MS-ESS3-3

What is a non-point source of pollution?

• Contributions from many sources accumulating over a wide area, eventually reaching levels that affect water quality.

• A single factory discharging waste into a river.

• A leaking oil tanker in the ocean.

• A sewage treatment plant releasing treated water.

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NGSS.MS-ESS3-3

What is a main issues that is caused by sewage discharge pipes?

• Wastewater contains disease-causing organisms.

• Sewage discharge pipes help in water purification.

• Sewage discharge pipes increase fish population.

• Sewage discharge pipes reduce water pollution.

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What is the effect of thermal pollution on water?

• Lowers oxygen concentrations and can lead to stress and death of organisms.

• Increases water clarity and supports aquatic life.

• Promotes the growth of beneficial algae.

• Enhances the natural filtration process of water.

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NGSS.MS-LS2-4

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What act regulates thermal pollution according to the image?

• The Clean Water Act of 1972.

• The Air Quality Act of 1967.

• The National Environmental Policy Act of 1969.

• The Endangered Species Act of 1973.

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NGSS.MS-PS3-3

What chemical reaction occurs in acid mine drainage?

• Water and air react with pyrite (FeS2) to break down into iron and sulfuric acid.

• Pyrite reacts with carbon dioxide to form carbonic acid and iron.

• Water reacts with limestone to produce calcium sulfate and hydrogen gas.

• Air reacts with copper sulfide to produce copper sulfate and sulfur dioxide.

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What is the pH effect of acid mine drainage on water?

• Lowers pH of water (pH can be close to 0).

• Raises pH of water (pH can be close to 14).

• Has no effect on pH of water.

• Neutralizes the pH of water.

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NGSS.MS-PS1-2

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What is the main health risk associated with lead pipes?

• Exposure leads to attacks on nervous system, learning & behavioral problems, and kidney damage.

• Causes immediate respiratory failure.

• Leads to increased risk of skin cancer.

• Results in severe dehydration.

What was the main reason for switching water source in Flint, Michigan in 2014?

• To save money.

• To improve water quality.

• To increase water supply.

• To comply with federal regulations.

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NGSS.MS-ETS1-1

What is a point source of oil spills?

• Leaking tankers or pipes.

• Natural seeps.

• Runoff from land.

• Atmospheric deposition.