Impact of Oil Spills on Marine Ecosystems Quiz
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Questions and Answers

Which method of waste reduction produces compost as a benefit?

  • Recycling
  • Incineration
  • Composting (correct)
  • Landfill

    • What is a challenge associated with recycling as mentioned in the text?

  • Produces compost
  • Energy-intensive (correct)
  • Odor potential
  • Space requirements

    • Which materials can be composted according to the text?

  • Food scraps, yard waste, paper products (correct)
  • Chemical waste
  • Grease and oils
  • Paper, plastic, glass, metal

    • How are bacteria and viruses typically removed in the sewage treatment process?

    <p>Biological processes</p> Signup and view all the answers

    What remains after the tertiary stage of sewage treatment?

    <p>Treated water, suitable for discharge or reuse</p> Signup and view all the answers

    What is sludge in the context of sewage treatment?

    <p>Organic matter, suspended solids</p> Signup and view all the answers

    What distinguishes point source pollution from non-point source pollution?

    <p>Point source pollution originates from a single identifiable source, while non-point source pollution comes from multiple sources.</p> Signup and view all the answers

    How does overfishing harm coral reefs?

    <p>Overfishing disrupts the balance of reef ecosystems, impacting the food chain and coral health.</p> Signup and view all the answers

    Which activity contributes to pollution that can harm coral reefs?

    <p>Coastal development</p> Signup and view all the answers

    How do oil spills affect marine mammals?

    <p>Oil damages marine mammal fur or feathers, leading to hypothermia.</p> Signup and view all the answers

    What is the impact of polluted runoff on coral reefs?

    <p>Polluted runoff degrades water quality and harms coral reefs.</p> Signup and view all the answers

    How does climate change negatively affect coral reefs?

    <p>Climate change causes increased temperatures leading to coral bleaching.</p> Signup and view all the answers

    How does oil affect marine birds?

    <p>Coats feathers, reducing insulation and buoyancy</p> Signup and view all the answers

    What is the impact of oil spills on the fishing industry?

    <p>Contaminates fish stocks leading to closures of fishing grounds</p> Signup and view all the answers

    How do ocean dead zones develop?

    <p>Excessive nutrient input leading to algal bloom formation and oxygen depletion</p> Signup and view all the answers

    What is the relationship between BOD and DO levels in water?

    <p>Inverse relationship: as BOD increases, DO decreases</p> Signup and view all the answers

    How does mercury enter the food chain primarily?

    <p>Through aquatic ecosystems</p> Signup and view all the answers

    What are endocrine disruptors?

    <p>Chemicals that regulate hormones in organisms</p> Signup and view all the answers

    What is the difference between natural eutrophication and cultural eutrophication?

    <p>Natural eutrophication is caused by rapid nutrient influx, while cultural eutrophication is a gradual nutrient accumulation.</p> Signup and view all the answers

    What impact does temperature have on Dissolved Oxygen (DO) levels in water?

    <p>Lower water temperature reduces DO levels.</p> Signup and view all the answers

    What are Persistent Organic Pollutants (POPs)?

    <p>POPs are resistant to degradation and persist in the environment.</p> Signup and view all the answers

    What is the definition of Bioaccumulation?

    <p>Bioaccumulation is the accumulation of substances in an organism's tissues over time.</p> Signup and view all the answers

    What is a common problem associated with ocean dumping?

    <p>Marine pollution and human health risks.</p> Signup and view all the answers

    How does cultural eutrophication differ from natural eutrophication in terms of speed of nutrient accumulation?

    <p>Cultural eutrophication has an immediate impact on nutrient levels, unlike natural eutrophication.</p> Signup and view all the answers

    Why is methane released from a landfill considered a problem?

    <p>Methane is a potent greenhouse gas that contributes to climate change.</p> Signup and view all the answers

    What are some characteristics of Persistent Organic Pollutants (POPs)?

    <p>Resistance to degradation and bioaccumulation.</p> Signup and view all the answers

    What conditions can help speed up decomposition in landfills?

    <p>High oxygen availability</p> Signup and view all the answers

    Define hypoxic.

    <p>Low oxygen levels in water.</p> Signup and view all the answers

    What is solid waste?

    <p>Non-liquid or gas discarded materials.</p> Signup and view all the answers

    What is leachate?

    <p>Contaminated liquid formed in landfills.</p> Signup and view all the answers

    What are three common ways that solid waste is disposed of?

    <p>Landfilling, incineration, recycling.</p> Signup and view all the answers

    What is e-waste and why is its disposal a problem?

    <p>Discarded electronic devices containing hazardous substances.</p> Signup and view all the answers

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