Over ________ of volcanism is associated with the edges of tectonic plates.
A. 50%
B. 90%
C. 80%
D. 60%
E. 70%
Answer: B
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What is a transmissible disease?
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The assessing the benefit of providing improved sanitation and safe water to the public involves
A. Placing a value on the time needed to travel to obtain water. B. placing a value on health care cost to treat diarrheal diseases. C. placing a value on the number of workdays lost due to illness. D. All of the options listed are involved.