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.
The span of Homo sapiens sapiens’ time on earth
Earth’s history is divided into nested sets of time--eons, eras, periods, and epochs--and is called
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his
Earth’s Spheres
Brain Hemisphere Activity
The Last Man on Earth