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quiz5.doc

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Department
Earth Sciences
Course Code
EARTHSC 2WW3
Professor
Carolyn Capretta

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Submission View Released: Mar 5, 2014 11:07AM Question 1 1 / 1 point What affects groundwater chemistry? Question a) the chemistry of options: rainwater the soils in the b) catchment the rocks through which the water has c) passed d) the residence time of in the aquifer all of the e) above Question 2 1 / 1 point Which of the following makes up the majority of aquatic algae? Question Bacillariophyt a) a options: Chlorophyte b) s c) Chryophytes Cyanobacteri d) a Rhodophyt e) a Question 3 1 / 1 point How do parasites cause changes in the productivity and community of an aquatic ecosystem host? Question They break coarse material of the hosts into fine particulate organic options: a) matter b) They reduce host population density c) They change the behaviour of the host d) all of the above e) b and c Question 4 1 / 1 point In general, the headwaters of river systems: Question a) are steep options: b) are deep have coarse bed c) sediments d) have slow velocities e) a and c f) all of the above Question 5 1 / 1 point In which area does the most primary production take place? Question a) the profundal zone options: b) the benthic zone the pelagic photic c) zone d) the littoral zone Question 6 1 / 1 point Which of the following is a symptom of the urban stream syndrome? Question a) altered ecosystem options: functioning modified thermal b) regimes transformed channel c) morphology d) reduction of biodiversity e) all of the above Question 7 1 / 1 point The intrinsic groundwater vulnerability is a function of which: Question nature of any overlying confining options: a) layer b) depth to groundwater thickness of any overlying confining c) layer characteristics of the aquifer d) materials e) all of the above Question 8 1 / 1 point What is regarded as being the most important nutrient driving eutrophication in lake ecosystems? Question a) Phosphorus options: b) Nitrogen c) Oxygen d) Sulfur Question 9 1 / 1 point Which is true of a Eutrophic lake? Question options: a) high dissolved oxygen b) low in nutrients c) turbid water d) all of the above Question 10 1 / 1 point For the water balance table: How many months is the growing season? Question a) 3 months options: b) 6 months c) 9 months d) 12 months e) not enough information
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