People who are well aware of the damaging effects of mercury might insist that all fish that they eat be free from mercury. They may be alarmed even if mercury levels remain at very low levels, far below that known to cause harm
Insisting that mercury be completely eliminated from fish A) will likely require little additional cost with potentially great benefits.
B) will likely reduce the cost of fish and improve the health of consumers.
C) is not cost effective for the health benefits of complete elimination.
D) is a necessary but expensive part of additional environmental controls.
C
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On the map below, all of the following would be considered "interpretations" except
A) spring migration routes.
B) Ivvavic National Park.
C) concentrated calving areas.
D) porcupine caribou herd range.
Eastern North America during the Cenozoic can be described as a(n):
a. active orogenic belt. b. area of uplift and erosion. c. active volcanic region. d. flat, eroded plain. e. major marine basin.
Earth is about ________
A) 6,000 years old B) 4.6 billion years old C) 4.6 million years old D) 40 billion years old E) 400,000 years old
Air travel, the Internet, cheap fossil fuels, and television all have allowed people to ________
A) consume less energy and materials B) live more densely packed into urban areas C) return to an agricultural society D) remain connected while living in less centralized locations E) live within the UDB's demanded by smart city design