Which statement about vorticity is least accurate?
a. Earth's vorticity in the Northern Hemisphere is positive.
b. Earth's vorticity is zero at the poles.
c. Air that spins cyclonically possesses positive vorticity.
d. Absolute vorticity is the sum of Earths vorticity and the relative vorticity.
e. Vorticity is the measure of the spin of small air parcels.
Question 2
On an upper-level chart where the isotherms cross the isobars (or contours) and temperature advection occurs, the atmosphere is called
a. barotropic.
b. geostrophic.
c. hydrostatic.
d. baroclinic.
e. barometric.
Oceanic circulation, which is driven mainly by the prevailing winds, moderates earth's climate.
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