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Pollution Review Unit 7

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Across
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Pollution and __________ can lead to the loss ocean species and healthy ecosystems
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Algal blooms can block sunlight which results in a decrease in this type of gas in the water
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Helps filter out and remove pollutants as water slowly seeps through the soil
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The Clean Water Act was passed to help prevent this source of pollution that can be clearly identified
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Seaweed, fish and __________ are most immediately effected by storm drain pollution
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Percent of nonpoint source oil pollution in the oceans
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The build up of toxins in the predators at the top of the food chain
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Large absorbent sponges that soak up oil in the water
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All water in Texas eventually drains into the Gulf of ___________
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Nitrogen and Phosphorus are often used on lawns as a type of ______________
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Cy Lakes' watershed drains into this reservoir
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An ecosystem where fresh water from rivers mix with salt water from the ocean
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An area of land that drains into a particular water way such as a stream or river
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Fertilizers and animal waste can be the cause of this type of pollution
Down
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What excess nutrients can lead to in an aquatic ecosystem
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DDT is this type of toxic pollutant whose use can be avoided by using farm methods such as crop rotation
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Boats use this equipment to suck up oil contained by floating booms
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Oil floats on top of water because it is less ___________ than water
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Trash, grass clippings, leaves, twigs and plastics that accumulate in waterways are called __________
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Storm drains direct large amount of waters into the sewer system from these types of surfaces
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Pollution that comes from multiple sources and that can't be directly identified
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Raw sewage or animal waste have disease causing pathogens spread through this type of pollution
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The boundaries of separate watersheds defined based on the movement of water into different waterways
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Chemicals sprayed on oil slicks that may be toxic to coral reefs
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This type of disk is used to measure the turbidity of the water
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Pollution from oil, paint or other chemicals
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The cause of sediment pollution
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Zone of transition between aquatic and land plants
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An area of land that frequently has standing water or mud
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Percent of oil pollution in the water caused by oil tanker mishaps