The heavily farmed state of Iowa has lost about ____ of its inland wetlands.
A. 29%
B. 39%
C. 59%
D. 79%
E. 99%
Answer: E
Environmental & Atmospheric Sciences
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The sudden increase in oil and gas production by fracking in the United States was enabled by two technologies: hydraulic fracturing and ____.
A. liquefied natural gas ships B. cargo helicopters C. digital water pumps D. GPS E. horizontal drilling
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Which technology are environmental scientists using to photograph poaching activities in Africa?
A. Unmanned aerial systems (UAS) B. Gel electrophoresis C. Environmental DNA (Edna) surveillance D. Acoustics
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What pH value indicates a strong acid?
a. 12.5 b. 9.1 c. 3.5 d. 1.7
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Which of the following is associated with a low erythrocyte count?
A) anemia B) polycythemia C) leukemia D) typhoid
Environmental & Atmospheric Sciences