Who is credited for articulating the conservation ethic and for founding the U.S. Forest Service?
A) Theodore Roosevelt
B) Gifford Pinchot
C) Ralph Waldo Emerson
D) John Muir
E) Aldo Leopold
B
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Researchers were studying a population of birds on Daphne Major, one of the Galápagos Islands. A drought caused many plants on the island to die. There were few seeds left for the birds to eat. Small seeds, which were easy to eat, disappeared quickly. Larger seeds remained available. Birds with thicker beaks were better able to crack and eat these larger seeds. Which of the following statements about the population on Daphne Major is TRUE?
A. Birds with thick beaks are more likely to survive during the drought. B. Birds with thin beaks are more likely to survive during the drought. C. Birds with thin beaks and birds with thick beaks are equally likely to survive during the drought. D. It is impossible to tell from the information provided.
Mexico City's poor air quality is exacerbated by
A. frequent temperature inversions. B. air temperature that is warmer at the surface than aloft. C. El Nino events. D. winds that sweep down the mountains.
As a result of cold currents, July SST's are coldest
A. along the equator. B. on the east coasts of continents. C. on the west coasts of continents. D. along the axis of the Atlantic Ocean.
Energy in a wind wave increases with _____
a. slower wind speeds b. increasing wave height c. decreasing fetch d. storms of shorter duration e. storms of smaller area