Cyanide is used to leach gold from the ore. Which of these potential scenarios associated with cyanide leach ponds would cause the greatest immediate impact to far reaching areas?
A. spill directly into a stream
B. air emissions
C. leaking into the groundwater
D. small amount spilled on the ground
Answer: A
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The Convention on International Trade in Endangered Species (CITES) addresses all of the following except
a. It restricts international trade of roughly 5,000 species of animals. b. It restricts international trade of roughly 28,000 species of plants. c. It focuses on ecosystems rather than individual species. d. It has helped to reduce international trade on elephant ivory. e. It has been signed by 174 member countries, including the United States.
Whether a vehicle comes to an abrupt stop by crashing into a haystack or a brick wall, the force experienced is less hitting the
A. brick wall. B. haystack. C. same on each D. none of the above
If multiple species find themselves competing for the same resource, the competition can be reduced by which of the following?
A. camouflage B. cooperation C. resource partitioning D. resource expansion E. mimicry
A thermally direct cell is one that
a. ?is found in both the Northern and Southern Hemispheres. b. ?is driven by radiational cooling. c. ?occurs on both sides of a large lake or ocean. d. ?is driven by energy from the Sun. e. ?represents the middle cell in the three-cell model.