AP Environmental Science - Unit 8 Review

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What is Non-Point Source Pollution?

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Pollution that does not originate from a single, identifiable source, primarily caused by runoff from various sources such as agricultural fields, urban areas, and forests.

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NGSS.MS-LS2-5

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What causes Acid Mine Drainage?

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Water collecting in abandoned mines and dissolving the minerals there, becoming acidic.

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NGSS.MS-ESS2-4

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What is the primary function of Primary Sewage Treatment?

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The removal of large debris and objects from wastewater before further treatment.

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What is thermal pollution?

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The degradation of water quality by any process that changes ambient water temperature, often caused by industrial discharges.

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NGSS.MS-PS3-3

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What is LD 50 (Lethal Dose 50)?

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A dose of a chemical that is lethal to 50 percent of a population, used to measure toxicity.

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What is the impact of thermal pollution on aquatic life?

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It can lead to low oxygen levels in water, which can harm fish and other aquatic organisms.

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NGSS.MS-LS2-4

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What are Persistent Organic Pollutants (POPs)?

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Chemical substances that persist in the environment, bioaccumulate in the food chain, and pose risks to human health and the environment.

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NGSS.MS-LS2-4

NGSS.MS-PS1-3

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What is the process of eutrophication?

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The enrichment of water bodies with nutrients, often leading to excessive growth of algae and depletion of oxygen.

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NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

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What is the role of bacteria in Secondary Sewage Treatment?

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Bacteria break down organic matter in wastewater, further purifying it after primary treatment.

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NGSS.MS-LS2-3

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What is the difference between point source and non-point source pollution?

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Point source pollution comes from a single, identifiable source, while non-point source pollution comes from multiple, diffuse sources.