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Language Exercises

I. NEW TERMINOLOGY: Oral Exercises

1. Select words from the list below to complete the following sentences. Some of the
words may be used more than once, and you may have to make the word plural or
change the tense. Do not try to write the words in the spaces.

constant (-ly) equalize dense (-ity) (-er)

equilibrium circulation Coriolis force

transfer equilibrium aloft deflect

a. The hot air at the equator rises and flows _______________________ toward the poles.

b. Heat from the ground is _______________ to the air that lies over it.
C. The general _______________ of the earth's atmosphere is from the equator to the poles
then back again to the equator.

d. In a mercurial barometer there is an _______________ between the weight of the mercury
in the tube and the weight atmosphere.

e. When a warm air mass meets a cold air mass, the warm air is ____________________

upward over the cold air mass.
f. The warm air mass does not move directly northward to the pole, it is deflected to the east
by the____________________________

g. Cold air is _______________than hot air, so it sinks and moves on the surface toward the
equator. When it reaches there its _______________________________ changes
because it is heated.

h. Even at sea level the atmospheric pressure is not a __________________ 29.92 due to the

circulation of different air masses.

i. Local pressures are converted to sea level pressures to _____________ the differences in
elevation.

j. A cubic meter.(1 m3) of cold air weighs more than a cubic meter- of hot air. The cold air
is________________ .

k. The uneven heating of the earth's surface causes a _____________ circulation of the
atmosphere.

l. If two air masses have the same characteristics there will be no flow between them, but if
the __________________ is disturbed by heating, high pressure air will flow to the low-
pressure area.

m. Since high-pressure air flows toward a low-pressure area, we say that the system tends
to________________ pressure difference.

n. The theory of circulation of air on a rotating earth must consider the deflection caused by
the_________________________________________