Ocean acidification
A. is the primary cause of coral bleaching.
B. results from unusually warm seawater temperatures.
C. is a particular issue for cartilaginous fishes such as sharks.
D. threatens animals that build calcium carbonate shells.
Answer: D
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How does the "tragedy of the commons" relate to producers of toxic waste?
A) One company typically bears the burden of research and development of waste disposal technology. B) Average people (the commoners) are responsible for more waste generation than large companies. C) Less profitable companies often treat waste more responsibly than profitable companies. D) Unless mandated by law, firms that produce toxic waste might dump it into the air or public waters. E) Governments often assume the burden of toxic waste disposal.
Which of these pH values corresponds to the most acidic rain?
A. 5.2 B. 4.9 C. 6.1 D. 5.8 E. 4.6
In the vadose zone, water will move from:
a. higher to lower matric potential b. lower to higher matric potential c. higher to lower total head d. lower to higher total head
The urban heat island is ____
a. warmer air temperatures in urban areas compared to surrounding rural areas b. a concentration of energy use in an urban area c. locating factories in a single location downwind from cities d. use of conservation techniques to reduce energy use in cities e. only created in cities where topography is a contributing factor