11.3 Guided Notes on Water Pollution

What is the definition of water pollution?

• The contamination of water bodies, usually as a result of human activities.

• The natural process of water evaporation.

• The cycle of water through the environment.

• The process of water freezing into ice.

What are the two underlying causes of water pollution mentioned in the notes?

• Industrial waste and agricultural runoff

• Deforestation and urbanization

• Climate change and overfishing

• Plastic waste and oil spills

In developing countries, water is often polluted with what?

• pollutants such as chemicals, waste, and pathogens.

• natural spring water.

• pure distilled water.

• mineral-rich water.

What is the definition of point-source pollution?

• Point-source pollution refers to contaminants that enter a waterway through a single, identifiable source, such as a pipe or a ditch.

• Point-source pollution is pollution that comes from multiple sources and is difficult to trace.

• Point-source pollution is a type of pollution that occurs naturally without human intervention.

• Point-source pollution refers to air pollution that affects large areas and is not confined to a single source.

Give examples of point-source pollution.

• Examples of point-source pollution include: 1. Discharge from a wastewater treatment plant. 2. Emissions from a factory smokestack. 3. Runoff from a specific industrial site. 4. Leaks from a sewage pipe.

• Examples of point-source pollution include: 1. Emissions from vehicles on a highway. 2. Agricultural runoff from multiple farms. 3. Urban stormwater runoff. 4. Diffuse air pollution from residential areas.

• Examples of point-source pollution include: 1. Natural erosion of riverbanks. 2. Pesticide spraying over large areas. 3. General littering in public spaces. 4. Dust from unpaved roads.

• Examples of point-source pollution include: 1. Noise from a busy city street. 2. Light pollution from streetlights. 3. Heat emissions from a large parking lot. 4. Odors from a landfill.

What is the definition of nonpoint-source pollution?

• Pollution that comes from many diffuse sources rather than a single, identifiable source.

• Pollution that is emitted directly from a factory.

• Pollution that is caused by a single event.

• Pollution that can be traced back to a single source.

Give examples of nonpoint-source pollution.

• Agricultural runoff

• Urban runoff

• Sediment from construction sites

• nonpoint-source pollution

Which of the following is a principal water pollutant?

• Pathogens

• Organic matter

• Organic chemicals

• Inorganic chemicals

• Heavy metals

What are physical agents in wastewater treatment?

• Microorganisms

• Chemical additives

• Physical processes like screening and sedimentation

• Biological processes

Define wastewater.

• Water that contains waste from homes or industry.

• Water that is pure and drinkable.

• Water that is used for irrigation only.

• Water that is free from any contaminants.