The North Atlantic current is produced by the ________.
A. southeast trade winds
B. seasonal monsoon
C. northeast trade winds
D. polar easterlies
E. prevailing westerlies
Answer: E
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Which of the following is the most abundant gas emitted from volcanoes?
A. carbon dioxide B. water vapour C. nitrogen D. sulfur dioxide
Methane:
A) is a permanent gas. B) is a good reflector of thermal radiation. C) is removed from the atmosphere by the digestive processes of cattle. D) has increased in concentration over the last 50 or so years.
Gaucher's disease is associated with which of the following?
A) the inability of synthesize glucocerebrosides B) the inability to store sufficient glucocerebrosides C) an over accumulation of glucocerebrosides D) any of the above, depending on the patient
An echo sounder operates by measuring the time required for a ________
A) sound pulse travels from a ship to the seafloor and back B) radar beam to travel from a harbor patrol boat to a fuzz-buster on a speeding yacht C) light beam to travel from a satellite at a known altitude to the sea bottom and back D) radar beam to travel from a ship to the seafloor and back