Magnetic declination is:
a. the angular difference between magnetic north and the Arctic Circle
b. the angular difference between magnetic north and true geographic north
c. the angular difference between magnetic north and the prime meridian
d. the angular difference between magnetic north and the equator
b
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Name at least three reasons explaining why the Great Lakes suffer from water pollution.
What will be an ideal response?
The concept of ecosystem capital is most likely appreciated by
A) a shrimp farmer in Thailand. B) a lumber company in Canada. C) a marine biologist in Florida. D) owners of a banana farm in Brazil.
A typical example of a shield volcano is
A. El Chichón B. Mount St. Helens C. Kilauea in Hawaii D. Mount Vesuvius
Of the ions Cl-, Na+, NH4+ and NO3-, which will move towards the anode?
A) only chloride ions B) only sodium ions C) both chloride ions and nitrate ions D) both the sodium ion and ammonium ions