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Crucigrama Sopa de Letras Hoja de Trabajo
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Water Pollution

Horizontales
When chemical, physical, or biological agents degrade a water source's quality
Fragments of plastic less than 5mm in length
Deviation from the natural temperature in a habitat
Example; sewage treatment plants
Water beneath Earth's surface in between sediment and rock formations
Verticales
Contains waste from homes or industry
Accumulation of pollutants at successive levels of the food chain
Example; algae in the Clicos lake located in Lanzarote
Example; runoff of chemicals from urban streets
Introduction of harmful materials into the environment