Which category of toxic chemical has an acute response that includes death?
A. neurotoxin
B. carcinogen
C. teratogen
D. mutagen
Answer: A
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How often do destructive tsunamis strike somewhere in the world?
A) Approximately once a year B) Approximately one every two years C) Approximately once every decade D) Approximately a few times per year
As a wave moves to shallower water it stops being a deep-water wave when the depth equals (where L = wavelength) ________.
A. L/200 B. L/20 C. L/2 D. L/0.2 E. L/g
The oldest known terrestrial material (a zircon included in a younger rock) dates back to 4.4 billion years ago. Where is this material located?
A) Dharwar Craton, India B) Slave Craton, Alberta, Canada C) Jack Hills, Western Australia D) Grenville Terrance, United States
Cyclones in the Northern Hemisphere are ________ air flows
A) clockwise B) counterclockwise C) north-flowing D) south-flowing E) mythical