A. refers to the ratio of the number of water vapor molecules to the number of
permanent gas molecules in a given sample of air.
B. has only one truly useful measure, at least for meteorologists.
C. includes the amount of ice suspended in the
helped discredit the Norwegian cyclone model.
founded the Norwegian Geophysical Institute.
developed the polar front theory in order to explain the occurrence of hurricanes.
was a tragic victim of the fighting in World War
1. The atmosphere:
A. has vertical wind speeds that are typically around one-tenth that of horizontal
B. is about as deep as the planet is wide.
C. is more than 99 percent contained within the first 60 miles from the earths
D. has no
1. The three-cell model of atmospheric circulation:
A. gives a good approximation of what actually happens over the entire globe.
B. is not significantly better than the Hadley model.
C. does not address what happens at the poles.
D. is better at explaini