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Questions and Answers
What is a major cause of dead zones in coastal waters?
What is a major cause of dead zones in coastal waters?
What is the process called when excessive nutrients enter the sea, leading to algal blooms?
What is the process called when excessive nutrients enter the sea, leading to algal blooms?
Which type of pollution is primarily caused by oil tanker crashes?
Which type of pollution is primarily caused by oil tanker crashes?
What impact does marine pollution have on recreational activities?
What impact does marine pollution have on recreational activities?
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How can food web contamination occur due to marine pollution?
How can food web contamination occur due to marine pollution?
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What is one socio-economic impact of marine pollution?
What is one socio-economic impact of marine pollution?
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What is a major type of solid waste that enters the oceans?
What is a major type of solid waste that enters the oceans?
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What is a consequence of improper disposal of radioactive materials in the ocean?
What is a consequence of improper disposal of radioactive materials in the ocean?
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What happens to marine plants during an algal bloom?
What happens to marine plants during an algal bloom?
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Which of the following can increase government medical expenditure?
Which of the following can increase government medical expenditure?
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Flashcards
What is a "Dead Zone"?
What is a "Dead Zone"?
Excessive nutrients in sewage lead to explosive growth of algae, blocking sunlight and consuming oxygen, creating areas where most life cannot survive.
What causes oil spills?
What causes oil spills?
Oil tanker accidents, drilling mishaps, and runoff from land all contribute to oil contamination in the oceans.
What is a major type of ocean pollution from solid waste?
What is a major type of ocean pollution from solid waste?
Plastics are a significant component of solid waste dumped into the ocean, harming marine life by entanglement and ingestion.
How does radioactive material pollute the ocean?
How does radioactive material pollute the ocean?
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How does pollution threaten marine life?
How does pollution threaten marine life?
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How does marine pollution impact the food web?
How does marine pollution impact the food web?
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How does pollution affect tourism?
How does pollution affect tourism?
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What health risks are associated with marine pollution?
What health risks are associated with marine pollution?
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How does pollution impact recreational activities?
How does pollution impact recreational activities?
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Why is marine pollution a major concern?
Why is marine pollution a major concern?
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Study Notes
Dead Zones in the Gulf of Mexico
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Area Change (1985-2013): A 440% increase in the area of dead zones was observed.
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Gulf of Mexico Dead Zone Severity: Evidence suggests the dead zone problem in the Gulf of Mexico is worsening.
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Nutrient Source: Intensive farming is a primary source of phosphorus and nitrogen in the Gulf of Mexico.
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Dead Zone Formation: Excessive nutrients from farming lead to algal blooms. Algae die, and bacteria decompose them. This process consumes oxygen, creating a zone where aquatic life cannot survive.
Socio-Economic Impacts of Dead Zones
- Economic Losses:
- Reduced tourism due to pollution.
- Increased healthcare costs for people impacted by food poisoning.
- Suspension of recreational activities in areas with polluted coasts.
Alleviating Dead Zones
- Sustainable Farming Practices: Implementing practices like crop rotation, and reduced fertilizer usage can mitigate the problem.
- Sewage Treatment: Proper sewage treatment facilities to prevent untreated discharge.
- Intercropping: Planting different crops together to reduce fertilizer runoff
Oil Spills and Seabirds
- Feather Impacts: Oil absorbs onto feathers, increasing their weight, and affecting insulation, making it difficult for seabirds to fly.
- Temperature Regulation: Feathers help regulate birds' body temperatures. Oil disrupts this function, creating problems.
- Oil Consumption: Ingesting the oil can lead to health problems for sea birds.
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Description
Explore the causes and impacts of dead zones in the Gulf of Mexico, where excessive nutrient runoff leads to severe ecological consequences. This quiz covers the area changes from 1985 to 2013, socio-economic impacts, and sustainable practices for alleviation.
