Match the following water quality parameters with

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Match the following water quality parameters with their description. Question Correct Match Selected Match pH C. a measure of the acidity (or basicity) of the water C. a measure of the acidity (or basicity) of the water turbidity B. measures the amount of light that can infiltrate the water body (i.e., cloudiness of the water) B. measures the amount of light that can infiltrate the water body (i.e., cloudiness of the water) specific conductanc e A. measures how well water conducts electricity, which depends on the mineral salt content of the water A. measures how well water conducts electricity, which depends on the mineral salt content of the water suspended sediment D. how much sediment (non- dissolved particles) is being carried by the water D. how much sediment (non- dissolved particles) is being carried by the water Question 43 3 out of 3 points
What is the most common source for pathogens that get into natural waters and drinking water sources (in developing countries)?
Question 44 3 out of 3 points What % of the global population lives in slums?
Question 45 3 out of 3 points From 1950 to 2011, the population of the U.S. doubled. How did the amount of vehicle travel in this same time period change?
Question 46 3 out of 3 points The United Nations characterizes a development as a slum if it meets which of the following criteria? Select ALL that apply.
insecure residential status Correct Answers: poor structural quality of housing inadequate access to safe water insecure residential status Question 47 3 out of 3 points Because of rising populations in developing nations, the % of people who have access to improved sanitation systems has decreased since 1990.
Question 48 3 out of 3 points In terms of years of lives lost, car crashes are the ____ leading cause of death in the U.S.
Question 49 3 out of 3 points In the U.S., cities with growing populations have expanded in land area since 1950, but northern cities that have shrinking populations have decreased in land surface area.
Question 50 3 out of 3 points
Highway vehicles are responsible for ___% of the NOx air emissions in the U.S.

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