Water Pollution

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Renewable Resource Noun

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[ri-noo-uh-buhl ree-sors]

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Renewable Resource

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A natural resource that can be replaced or replenished naturally over time through ecological cycles or processes.

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Example: Solar panels and wind turbines capture natural energy, showing renewable resources.

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Water Scarcity Noun

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[waw-ter skair-si-tee]

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Water Scarcity

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The condition that occurs when the demand for fresh water exceeds the available amount in a specific area.

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Example: People collecting water shows scarcity when demand exceeds supply.

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Water Pollution Noun

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[waw-ter puh-loo-shuhn]

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Water Pollution

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The contamination of water bodies, such as lakes and rivers, often by harmful substances from human activities.

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Example: Waste flowing from a pipe into water shows how pollution contaminates water bodies.

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Point Source Noun

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[point sors]

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Point Source

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A single, identifiable origin of pollution, such as a discharge pipe from a factory or a leaking storage tank.

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Example: The image shows a factory with labeled pipes releasing waste, demonstrating a point source of pollution.

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Nonpoint Source Noun

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[non-point sors]

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Nonpoint Source

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Pollution that comes from many diffuse sources and cannot be traced to a single site of origin.

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Example: The image shows how different areas like city streets and farms contribute to nonpoint source pollution in water.

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Pesticides Noun

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[pes-tuh-sahyds]

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Pesticides

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Chemical substances used to destroy insects or other organisms that are considered harmful to cultivated plants or animals.

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Example: Different types of pesticide containers used to control harmful insects.

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Sewage Noun

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[soo-ij]

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Sewage

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The water and human wastes that are washed down sinks, showers, and toilets into the sewer system.

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Example: Household wastewater flows from sinks, toilets, and showers into the sewer system.

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Heavy Metals Noun

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[hev-ee met-ls]

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Heavy Metals

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Toxic metallic chemical elements from industrial waste that can accumulate in the bodies of aquatic organisms.

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Example: This image shows examples of heavy metals like lead and mercury, which are toxic and can pollute water.

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Sediment Noun

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[sed-uh-muhnt]

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Sediment

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Small particles of rocks and sand carried by erosion from the land into water, blocking sunlight and covering habitats.

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Example: Sediment particles in water settle to the bottom over time, blocking sunlight and covering habitats.

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Thermal Pollution Noun

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[thur-muhl puh-loo-shuhn]

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Thermal Pollution

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The negative effect on bodies of water caused by discharging heated water from factories and power plants.

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Example: A power plant releases warm water into a river, raising the temperature and harming fish.