Water Resources A practice quiz Water Resources 1
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Water Resources A practice quiz
Water Resources 1. Which of the following tests has the highest weigh factor? a) BOD b) p. H c) DO d) Fecal coliform e) Nitrate
2. A measure of how much stress is placed on the available dissolved oxygen in a river system. a) DO b) BOD c) Acidity d) Temperature
3. An essential plant nutrient needed in small amounts. Laws mandating a reduction of this nutrient in detergents helped reduce amounts in aquatic ecosystems. a) NO 3 b) PO 43 c) NH 4+ d) CO 32 e) Mg 2+
4. A high concentration may indicate contamination with pathogenic organisms a) BOD b) Turbidity c) Fecal Coliform d) DO e) TDS
5. A plant nutrient that, when present in excess amounts in drinking water can lead to “blue baby syndrome” which prevents the normal transport of oxygen by the hemoglobin molecule a) NO 3 b) PO 43 c) NH 4+ d) CO 32 e) Mg 2+
6. A high ____ level can decrease the amount of sunlight penetration, and thus decrease photosynthetic rates a) Turbidity b) TDS c) BOD d) Acidity e) Hardness
7. Thermal pollution can result in I. Increased metabolic rates of aquatic organisms II. Decreased ability to dissolve oxygen III. Increased susceptibility to heat shock a) I only b) II only c) III only d) I and II e) I, II and III
8. Plastics are classified as a) Oxygen demanding waste b) Genetic pollution c) Organic chemicals d) Inorganic plant nutrients
9. An increase in the concentration of plant nutrients in a lake can cause a) Assimilation b) Biological magnification c) Eutrophication d) Infiltration
10. Primary and Secondary sewage treatment are designed to remove a) NO 3 - and PO 43 b) Oxygen demanding waste c) Viruses d) Particulates
11. The component of sewage treatment designed to decompose organic matter a) Influent b) Effluent c) UV light d) Activated sludge
12. An underground layer of water-bearing permeable rock a) Groundwater b) Aquifer c) Water table d) Hydrologic cycle
13. After a point of sewage discharge in a stream, BOD will rise and DO will fall. Prior to recovery, which of the following will result? a) Anaerobic organisms will be present b) There will be an increase in phytoplankton c) There will be an increase in zooplankton d) Trout and mayflies will predominate
14. Which of the following is a provision of the clean water act? I. Require upstream withdraw of drinking water II. Preservation of wetlands III. Regulate the discharge of pollutants into US waterways a) I only b) II only c) III only d) II and III e) I, II and III
Answers • • • • 1 c 2 b 3 b 4 c 5 a 6 a 7 e 8 c 9 c 10 b 11 d 12 b 13 a 14 d
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