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- 1. Multiple ChoiceDescribes the chemical, physical and biological attributes of water as it is fit for drinking, fishing, swimming, farming, etcWater QualityWater ShedsDissolved oxygennitrates
- 2. Multiple ChoiceThe amount of oxygen in the water, measured in parts per million (ppm)pHDissolved Oxygennitrateseutrophication
- 3. Multiple ChoiceWe used bioindicators to measure the quality of water. What is a bioindicator?any living creatureeutrophicationAn organism sensitive to its environmenta turbidity tube
- 4. Multiple ChoiceThe specific bioindicator we used were macroinvertebrates. What is a macroinvertebrate?large enough to be seen without a microscope with no backbone (bugs)any bioindicatornitratespH
- 5. Multiple ChoiceWhat is the healthiest combination listed?low pH, high nitrates, neutral temperaturelow temperature, neutral pH and low nitratesas many nitrates as possible, low temp and low pHhigh temp, high nitrates and high pH
- 6. Multiple ChoiceHigh turbidity means.....very clear waterneutral pHvery murky or cloudy waterhigh nitrates
- 7. Multiple Choicewhat is the biggest impact of run-off in urban areas on stream health?incised, steep banks and a narrow stream channel due to erosionhigh turbidityhigh nitrates due to fertilizersewage leaks
- 8. Multiple Choicehow does increasing nitrates impact stream healthexcess algaeincreased oxygenincreased water clarity
- 9. Multiple ChoiceWhat is the end result of eutrophication?More algaedecreased oxygen and fish killsless turbiditya new pond
- 10. Multiple ChoiceIf water temperature goes UP, what happens to the level of Dissolved oxygen?It goes upIt goes down
- 11. Multiple Choice
What piece of equipment do we use to measure turbidity?
a chemical test
bioidicators
a secchi disk
incision ration
- 12. Multiple ChoiceWhich water quality indicator will be most impacted by burning fossil fuels and air pollution?nitratespH (water will be more acidic)Dissolved oxygenturbidity
- 13. Multiple ChoiceWhat type of relationship does dissolved oxygen and temperature have?A positive correlationan exponential correlationa negative correlationNo relationship
- 14. Multiple ChoiceA post development (urbanized) stream will most likely have which combination of physical characteristics?sloping banks, many habitat transitions, varied substrate sizeswide sloping banks with few habitat transitions and little substrate variationIncised banks, fewer habitat transitions and less variation in substrate sizeincised banks, no trees, lots of habitat transitions and a wide variety of substrate sizes
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