Font size
Worksheets425 Review #2
Total questions: 15
Worksheet time: 10mins
Form of N that is most closely associated with leaching into groundwater
(a)
More dissolved oxygen consumed is associated with
Higher BOD
Lower BOD
Pollutants that are naturally occurring or man-made elements or
compounds (e.g., nitrogen, pesticides, heavy metals,
pharmaceuticals)
Physical
Chemical
Biological
Radiological
Pollutants that impact physical appearance or other physical properties of water (e.g., sediment)
Physical
Chemical
Biological
Radiological
What are sources of pathogens in waterways?
Land application of animal manure or sewage/sludge
Wildlife and pet waste
Tissues of diseased plants and animals
Faculty septic tanks or sewer systems
What factors help explain why riverine N concentrations in the Mississippi River Basin are two times higher than the previous century?
Degradation or destruction of wetlands, floodplains, and other ecosystems
Urban and suburban development
Haber-Bosch process and mechanization led to increased fertilizer use
More intensive crop and animal production, especially N-fixing crops
The following wetland type has these characteristics:
1. Water sourced primarily from precipitation
2. Dominated by mosses and shrubs
3. Acidic soils
4. Pocosins are a sub-type
Fens
Bogs
Swamps
Marshes
Larger watersheds tend to have ___________ sediment delivery ratios.
Lower
Higher
What factors impact sediment yield?
Channel Density
Particle Size
Sediment Source
Hydrologic Connectivity
A coastal sandy soil with elevated hemic organic matter has...
Low P sorption capacity
High P sorption capacity
Uptake of inorganic N and conversion into proteins and other biomass by microbes and plants
(a)
The variables that tend to be estimated for water quality models, rather than measured
Inputs
Outputs
Parameters
Error
Combines molecular diffusion and mechanical
dispersivity in practice
(a)
Movement of pollutants due to movement of groundwater or surface water (velocity driven), not considerably contributing to dilution
(a)
Represents reaction kinetics where reaction rate is proportional to the reactant concentration. Most commonly applied to chemical and biological reactions, especially decay.
Zero-Order
First-Order
Second-Order
