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- 1. Multiple ChoiceAn example of a non-point solution iswaste water from leaking pipefertilizer runoff from lawns
- 2. Multiple ChoiceAn example of point source pollution istrash floating in the oceanoil spilling from a supertanker
- 3. Multiple ChoiceFor what types of water does the Clean Water Act relate to?surface watersocean waters
- 4. Multiple ChoiceA body of water that has high turbidity is ...cloudyclear
- 5. Multiple ChoiceWhich of the following are indicators of healthy water systems?high nitrates, high pH, and low temperatureslow temperatures, high dissolved oxygen, and neutral pH
- 6. Multiple ChoiceWhat is the possible effect of high nitrate level in water systems?algal bloomfewer algae
- 7. Multiple ChoiceWhich best determines the health of a lake used as a source of freshwater?its temperature and pHits location and depth
- 8. Multiple ChoiceIf a body of water has high turbidity levels, what can most likely be concluded?It is unsafe to drinkIt contains a lot of chemicals
- 9. Multiple ChoiceWhich describes a nonpoint source of pollution?runoff from a road into a nearby streamliquid fertilizer flowing
- 10. Multiple ChoiceWhich is most likely indicated by a sudden increase in turbidity in water?high biodiversityrapid increase in the amount of algae
- 11. Multiple ChoiceUnder which condition are large numbers of fish in a lake likely to die?when the water's dissolved oxygen is low and temperature is highright after a storm with heavy rainfall
- 12. Multiple ChoiceWhat is pollution?the release of harmful substances in the environmentan increase in the growth of algae in a pond
- 13. Multiple Choice
What pH level is best for marine organisms?1.07.4 - 14. Multiple ChoiceAn algae bloom in a water system is most likely caused byhigh oxygen levels in the waterlarge amounts of nitrates in runoff
- 15. Multiple ChoiceWhat is an indicator that a lake is healthy?low number of indicatorshigh number of indicators
- 16. Multiple ChoiceWhich is responsible for ensuring the safety of our drinking water?EPA (Environmental Protection Agency)NOAA (National Oceanic and Atmospheric Administration)
- 17. Multiple ChoiceWhich factors can have the greatest effect on the health of a river system?type of soil and salinitynitrate levels and turbidity
- 18. Multiple ChoiceThe best difference between point-source and non-point source pollution is ...Point-source come from one site; non-point comes from many sitesPoint-source comes from pipes; non-point comes from runoff
- 19. Multiple ChoiceWhat kind of pollution could cause low pH in a lake?acid rainfertilizer runoff
- 20. Multiple ChoiceWhy do high water temperatures reduce the amount of fish in a water system?High temperatures decrease the nutrient levelsHigh temperatures can reduce the amount of dissolved oxygen in the water
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