(c) causing massive thunderstorms over unpopulated and nonagricul-
tural areas, in an attempt to release the energy in a storm system
before it can produce hail over a populated or agricultural area.
(d) decreasing the temperatures in storm clouds, so hail is more likely
to fall as sleet or snow instead.
(e) causing severe thunderstorms to move faster, so they spend less
time over any given area, reducing the amount of hail that falls
over any particular point on the surface.
80. If a hydrogen bomb were deliberately exploded in the eye of a hurri-
cane, an expected result would be
(a) the movement of the storm away from land.
(b) complete dissipation of the storm within a few minutes to an hour.
(c) a dramatic decrease in the rainfall in the storm.
(d) a dramatic decrease in the wind speed in the storm.
(e) None of the above
81. The extent to which the height, width, or depth of a sample of solid
matter changes per degree Celsius is called the
(a) thermal fluctuation ratio.
(b) specific temperature.
(c) specific dimensional thermal variation.
(d) linear differential temperature ratio.
(e) thermal coefficient of linear expansion.
82. In England, cold waves such as those in the north-central United States
are unknown, even though England lies further north. This is because
(a) prevailing easterly winds from Europe moderate the English climate.
(b) the large land mass of North America retains more heat.
(c) the warm Pacific current known as La Niña.
(d) the warm Pacific current that creates ridges over the north-central
United States.
(e) the warm Atlantic current that originates in the Gulf of Mexico.
83. Neutrinos are generated by nuclear fusion reactions, and have been
implicated as a possible factor in the long-term climate of the earth.
Which of the following statements about them is true?
(a) They cause radiation sickness to anyone exposed to them.
(b) They cause global warming by heating up the earth’s core.
(c) Most of them pass right through the earth.
(d) Few, if any, of them reach the earth’s surface.
(e) They cause ionization of the upper atmosphere.
Final Exam
307