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8.E.1.3 Water Quality Quiz

Quiz by Deborah Roll

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15 questions
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  • Q1
    1. What most directly affects the amount of dissolved oxygen in a body of water?
    Salinity (salt)
  • Q2
    2. What factors can have the greatest effect on the health of a river system?
    Nitrate levels and the turbidity
    Natural disasters and tidal changes
    Type of soil and salinity
    Human consumption and pH
  • Q3
    3. Which water quality indicator can be determined by measuring how much light will be able to travel through water?
    nutrient level (nitrates)
    dissolved oxygen
  • Q4
    4. Which BEST determines the health of a lake used as a source of freshwater?
    the lake's depth and width
    The lake's temperature and pH
    the lake's temperature and its depth
    the lake's location and depth
  • Q5
    5. A measure of the natural populations of algae, plants, fish, and other wildlife provides evidence of the health of a body of water. By which term are these measure known?
    Turbidity factors
    pH indicators
    Abiotic factors
  • Q6
    6. Which is the most likely effect of too much nitrogen and phosphorus flowing into a lake?
    Lower temperature
    Greater salinity
    Algae blooms
    Decreased turbidity
  • Q7
    7. Rainbow trout are found in mountain streams and are sensitive to changes in their habitat. Which would be the best description for the use of rainbow trout in measuring water quality?
    Biological indicator (bio-indicator)
    Invasive species
  • Q8
    8. Which groundwater contaminant contained in fertilizers and pesticides comes from farms?
  • Q9
    9. Which would most likely result in an UNhealthy aquatic habitat?
    A decrease in nitrate levels
    An increase in water temperature
    An increase in dissolved oxygen levels
    A decrease in turbidity
  • Q10
    10. Which best describes how frogs can be used to indicate the health of a water system?
    Frogs will change color in a polluted environment
    Frogs will move away from a polluted environment
    Frogs will sicken and die in a polluted environment.
    Frogs will change their diet in a polluted environment.
  • Q11
    11. Which would lead to the greatest reduction of dissolved oxygen in a lake?
    Decreased number of fish in the lake.
    Decreased number of plants surrounding the lake
    Increased number of fish in the lake
    Increased nutrients (nitrates) and algae blooms
  • Q12
    12. Which of these is a bio-indicator?
    currents in the water
  • Q13
    13. Why does a cloudy river produce less plant life than a clear river?
    A cloudy river absorbs very little heat, while a clear river absorbs more heat.
    A cloudy river flows freely, while a clear river does not.
    A cloudy river has few dissolved nutrients, while a clear river has many.
    A cloudy river keeps the sunlight from reaching plants, while a clear river allows the sunlight to be absorbed by water plants.
  • Q14
    14. Which will most likely happen to a bio-indicator if there is a sudden increase in pollution?
    The bio-indicator will reproduce at higher rates, which will maintain population numbers.
    There will be a significant INCREASE in the population numbers and the quality of the bioindicators.
    There will be a significant DECREASE in the population numbers and the quality of the individual bioindicators.
    The bio-indicator will reproduce at lower rates, which will maintain population numbers.
  • Q15
    15. Which is most likely to happen when water temperature rises above 35 degrees C?
    The dissolved oxygen will INCREASE
    There will be negative health effects on wildlife.
    There will be DECREASED evaporation from the river.
    The water will become polluted

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