The blue whale is endangered because of its ____.
A. low reproductive rate
B. specialized niche
C. commercial value
D. narrow distribution
E. high trophic level feeding
Answer: A
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The eruption of Mount St. Helens
A) caused a major decrease in the global temperature in 1980. B) caused a major increase in the global temperature in 1980. C) was triggered by El Niño. D) saw most of the ejected gases and dust reach the stratosphere. E) none of the above
Which of the following is the numerical value of Kw for water at room temperature?
A) 1.0 x 10^-14 B) 1.0 x 10^-7 C) 1.0 x 10^7 D) 1.0 x 10^14
As the air temperature increases, the air's capacity for water vapor?
a. ?increases. b. ?decreases. c. ?remains constant. d. ?is unrelated to air temperature and can either increase or decrease. e. ?drops by 50%.
Suppose you are traveling in a submersible that is diving from the ocean surface toward the seafloor at a depth of 4000 meters. What would you observe on the submersible's instrument panel as it passed through the thermocline?
A. The temperature of the surrounding ocean water would decrease rapidly. B. The salinity of the surrounding ocean water would decrease rapidly. C. The temperature of the surrounding ocean water would increase rapidly. D. The pH of the surrounding ocean water would increase rapidly.