Presenter: Mr. Villareal (Mr. V) from Sherilyn Advanced Academic Academy, Mission, Texas.
Session: Third video this week, seventh video total.
Focus: Aquatic and terrestrial pollution, data analysis, multiple choice, free response, legislation.
Units Covered: Unit 8 (Aquatic and Terrestrial Pollution).
Agenda
Clarify concepts from Video 6.
Cover Unit 8 (Aquatic and Terrestrial Pollution).
Data Analysis and Legislation discussion.
Free response practice.
Questions and live practice.
Reminders and helpful links.
Clarifications from Video 6
Guided Notes: Post-lesson notes to be added in shared folder by the coming weekend.
Digital Testing App: Free Response Questions (FRQs) on digital app will be in separate screens; you can navigate within multi-part questions but not between different question numbers.
Responses in FRQs: AP readers grade only the first provided answer; ensure your best answer is first.
Legislation: Review of legislation relevant to AP Environmental Science will be covered today and tomorrow.
Pesticides FRQ Query: Pesticides are not accepted for certain answers as they contribute to air pollution.
Free Response Practices
Claims Example: A statement not needing explicit labeling as a claim; support comes later in questions.
Heat Island Effect: Urban areas with high temperatures compared to more natural surroundings due to structures like concrete roads.
Multiple Choice: 80 questions in 90 minutes (60% of score), standalone questions, quantitative and qualitative data questions.
Free Response: Three questions in 70 minutes (40% of score), including design investigations, environmental problem analysis, and solutions involving math.
Calculator: Allowed a 4-function calculator that doesn’t connect to the internet.
Helpful Links
AP Central for exam dates and ordering.
Environmental Science information and digital test practice guides.
Practice app for digital testing.
Feedback form to Mr. V for lecture improvement.
Unit 8: Aquatic and Terrestrial Pollution
Types of Pollution
Point Source: Identifiable sources like smokestacks or waste pipes.
Non-Point Source: Diffused sources like pesticide spraying or urban runoff.
Human Impacts on Ecosystems
Coral Reefs: Affected by higher temperatures, runoff, fishing practices, and acidification.
Oil Spills: Affect feathers of birds, kill fish, and have economic costs.
Dead Zones and Litter in Oceans
Dead Zones: Due to nutrient pollution causing hypoxic conditions leading to fish kills.
Litter: Unsightly, causes blockages, toxic materials involved, and heavy metals like mercury in water.
Wetlands and Mangroves: Provide significant ecosystem services; impacted by dams, overfishing, and pollutants.
Eutrophication
Excess nutrients lead to algae blooms, death, and decomposition consuming oxygen, leading to hypoxic/anoxic conditions and fish kills.
Other Pollutants
Endocrine Disruptors: Chemicals affecting growth and reproduction in wildlife.
Persistent Organic Pollutants (POPs): Such as DDT, stored in fat, travel through ecosystems, leading to bioaccumulation and biomagnification.
Solid Waste: Generated from various sources, needs proper disposal to avoid ground and water pollution.
Landfills: Modern methods to control leachates and gas emissions, but still challenges exist.
Incineration: Reduces waste volume, but emits pollutants.
Sewage Treatment: Primary (large objects), secondary (bacteria breakdown), tertiary (remove final pollutants), and sometimes chemical treatment.
LD50 and Dose-Response Curves: Measures of toxicity and organism response to pollutants.
Pathogens: Diseases spread through lower income areas without proper sanitation, such as dysentery, cholera, and malaria.
Key Legislation
Clean Water Act: Regulates pollutants in water bodies.
CERCLA (Superfund): Cleans up toxic waste sites.
Safe Drinking Water Act: Sets maximum contaminant levels in drinking water.
Delaney Clause: Bans carcinogenic food additives.
Resource Conservation and Recovery Act (RIkra): Manages waste from creation to disposal.
Science Practices and Examples
Practice Areas: Data analysis, visual representations, environmental solutions.
Example Question: LD50 graph interpretation and oil spill free response.
Key Approaches: Best answer first, specifying units, explaining identified impacts.
Conclusion and Review Tips
Study Tips: Review graphs, data, and legislation. Use AP daily videos and practice multiple choice questions. Focus on clear, concise, and specific answers in free responses.
Interactive Learning: Join Kahoot challenges for live practice and further understanding.