A greenhouse gas is classified as any gas that
A. traps visible rays and thereby promotes global warming.
B. traps infrared rays and thereby promotes global warming.
C. traps infrared rays and thereby reduces global warming.
D. traps gamma rays and thereby reduces global warming.
Answer: B
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Photosynthesis in the open sea occurs in the
A. euphotic zone. B. abyssal zone. C. bathyal zone. D. coastal zone. E. profundal zone.
Which of the following is a structural protein?
A) cellulose B) collagen C) hemoglobin D) insulin
The direction of the jet stream is:
a. westerly. b. easterly. c. easterly on the Northern Hemisphere and westerly on the Southern Hemisphere. d. westerly on the Northern Hemisphere and easterly on the Southern Hemisphere.
One approach to increasing the fish supply is through fish farming or ________.
A. overfishing B. aquaculture C. net fishing D. marine catch