The biggest threat to water quality in the Great Lakes is from ____.
A. industrial pollution
B. increased runoff caused by urban sprawl
C. the introduction of invasive species
D. poor air quality
E. the presence of toxic hot spots
Answer: B
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Urban development-such as building roads, parking lots, buildings, and sidewalks-reduces the recharge of groundwater.
Answer the following statement true (T) or false (F)
The following image represents which kind of matter?
A. a compound B. an element C. a mixture D. none of the above E. all of the above
Using the environmental lapse rate of 3.5°F/1000 feet, if you have a surface temperature of 77.5°F at sea level and go hiking in the nearby mountains to an elevation of 3000 feet, what will the temperature be at that elevation?
A) 67°F B) 60°F C) 88°F D) 0°F E) 73.5°F
Which sequence of numbers reflects the order in which the layers were deposited?
A) 1, 2, 3, 4
B) 1, 3, 4, 2
C) 4, 3, 2, 1
D) 4, 3, 1, 2
E) None of these are correct.