02 May Write an essay consisting of at least 600 words addressing ALL of the following topics:
Write an essay consisting of at least 600 words addressing ALL of the following topics:
Explain why rainfall varies throughout the United States.
Explain how the urban hydrologic cycle is different from the natural hydrologic cycle.
If 2 inches of rain falls during an 8-hour storm, what is the average rainfall intensity in inch/hour?
Explain the concept of recurrence interval.
In a hydrograph, explain the concept of “base flow”.
Perform an Internet search and provide a website that shows a hydrograph for a river in the state of Nebraska. What is the maximum flow (also known as discharge and flow rate) shown on the graph?
Explain the concept of radius of influence of a pumping well.
Write an essay consisting of at least 600 words addressing ALL of the following topics:
Describe alpha particles, beta particles, and gamma rays. Include a discussion of how far they travel and what stops them.
If 200 grams of salt is dissolved in 8000 grams of water, what is the salt concentration in percent? Show your work.
Why is dissolved oxygen an important water quality parameter? Are higher or lower values better for water quality? What is the saturation concentration (mg/L) of dissolved oxygen in freshwater at 20oC?
Describe how biochemical oxygen demand is measured?
Explain how the total dissolved solids concentration is determined?
Why is hardness an important water quality parameter? What are the two primary cations (i.e., positive ions) that contribute to hardness?
Explain total coliforms, fecal coliforms, and E. coli.
Describe the difference between grab samples and composite samples.
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