8.1 Sources of Pollution

• What is the definition of pollution?

  Contamination by harmful substances
• Pollution can be categorized into two main types: point source and nonpoint source pollution.source
• What is the definition of point source pollution?

  Single, identifiable source
• What is an example of nonpoint source pollution?

  Agricultural runoff
• Point source pollution is harder to regulate than nonpoint source pollution.

  False
• Match the pollution type with its characteristics:

  Point Source ↔️ Easier to regulate

  Nonpoint Source ↔️ Multiple, diffuse sources
• What is a common source of aquatic pollution from industrial activities?

  Heavy metals
• Agricultural runoff contributes to aquatic pollution by introducing fertilizers and pesticides
• Agricultural runoff can lead to eutrophication in aquatic ecosystems.
• What is a primary pollutant from urban waste management?

  Landfill leachate
• Mining operations contribute to terrestrial pollution by releasing toxic metals and sediment
• Order the impacts of pollution on ecosystems from most general to specific:

  1️⃣ Biodiversity Loss

  2️⃣ Habitat Degradation

  3️⃣ Food Chain Disruption

  4️⃣ Eutrophication
• Acid rain is an example of habitat degradation caused by pollution.
• What happens during bioaccumulation in a food chain?

  Pollutants build up
• Nutrient pollution, such as from fertilizers, leads to excessive algae growth and eutrophication