96. Which of the following statements (a), (b), (c), or (d), if any, is false?
(a) A single tornado may strike a given point on the surface twice.
(b) Tornadoes occur most frequently in the autumn.
(c) Tornadoes usually, but not always, form in conjunction with the
cyclonic vortex in a large or severe thunderstorm.
(d) A tornado can occasionally be more than a mile wide at the surface.
(e) All of the above statements (a), (b), (c), and (d) are true.
97. A weather-data monitoring instrument containing a battery-powered
radio transmitter, equipped with a parachute, and released from high-
flying aircraft to observe conditions aloft is known as
(a) a remote monitoring station.
(b) an anemometer.
(c) an altimeter.
(d) a Doppler radiosonde.
(e) a dropsonde.
98. Hadley cells are
(a) intense thunderstorms that often contain tornadoes.
(b) isolated thundershowers within hurricanes.
(c) regions with positive and negative electric charge that cause
lightning.
(d) low-pressure systems near the poles.
(e) None of the above
99. Two liquids can gradually mix together in a container at room temper-
ature, even if they don't dissolve in each other or chemically react,
because of
(a) diffusion.
(b) acceleration.
(c) their particle density.
(d) their viscosity.
(e) their electron shells.
100. In the temperate zone of the northern hemisphere, the prevailing west
wind sometimes shifts counterclockwise and blows from the south or
southeast. This is called
(a) a veering wind.
(b) a steering current.
(c) a backing wind.
(d) a cyclonic wind.
(e) an anticyclonic wind.
Final Exam
311