Vocab
A colorless, odorless, and tasteless chemical element.
Oxygen
A type of predatory fish, characterized by a cartilaginous skeleton, five to seven gill slits, and sharp teeth.
Shark
___ Pollution: can be traced back to a specific point.
Point Source
An area of land that channels rainfall and snowmelt to creeks, streams, and rivers, ultimately draining into a common outlet such as a reservoir, bay, or ocean.
Watershed
A cold-blooded aquatic vertebrate with gills, fins, and usually scales, living in both freshwater and marine environments.
Fish
___ Pollition: an aggregate of pollution from a large area.
Non-Point source
A substance that has passed into a solution, typically a solid.
Dissolve
A small, marine bony fish and is recognized by its upright swimming posture, horse-like head, long snout, and prehensile tail.
Seahorse
An ___ __ ___ shows how biological oxygen demand and dissolved oxygen in the water are affected by the addition of pollution.
Oxygen Sag Curve
A living, usually photosynthetic, multicellular organism, characterized by cellulose cell walls, lack of voluntary motion, and production of oxygen.
Plant
A decapod crustacean with a thick, hard exoskeleton, ten legs, and a flattened body.
What type of pollution often causes the oxygen sag curve?
Nutrients
A large, distinct ecological community or geographical area defined by its climate, soil type, and dominant plant and animal life.
Biome
A marine invertebrate echinoderm, class Asteroidea, characterized by a central disk and typically five, or more, radiating arms.
Starfish
Loose soil, sand, silt, clay.
Sediment