Which of the following is an excitatory neurotransmitter?
A) b-alanine
B) cysteine
C) taurine
D) none of these
B
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Which one of the following best illustrates a type of adaptation strategy in response to climate change?
A) Increasing the use of public transportation systems in cities B) Using solar and nuclear power to generate electricity instead of burning coal C) Widening the Panama Canal to allow larger ships to move from China to Europe D) Building taller levees along ocean coastlines to hold back rising sea levels and storm surges
Which of the following item is accepted in most residential recycling programs?
A. paperboard B. diapers C. plastic bags D. foamed plastic aka Styrofoam
Which of the following processes occurs when an anticyclone develops?
A. The anticyclone is causing a middle-latitude storm to form. B. Separate anticyclones are merging. C. The anticyclone is moving toward the east coast. D. The central pressure is increasing.
Why are gas hydrate deposits abundant in submarine continental margins?
a) Organic marine sediments provide natural gas in which pressure is high and temperature is low. b) There is plenty of water to form the ice-like compound. c) Gas hydrate forms in surface water offshore of continents where it sinks to the ocean bottom. d) The ocean contains abundant bacteria, which form the natural gas needed for gas hydrate. e) The ocean shields the gas hydrate from warming by the Sun, which would cause it to dissolve.