Maps of the Difficulty: Global distribution of the mean height of the 500 mb surface show a decrease in height at the pole, which is due primarily to:

A) low temperatures at the pole.
B) low-pressure systems at the pole.
C) the absence of the Coriolis effect at the pole.
D) the strong magnetic field at the pole.


Answer: A

Environmental & Atmospheric Sciences

You might also like to view...

Imagine a section of highway with a large outcrop of fractured rock that poses a serious rockfall hazard.  Which of the following engineering controls would be the best choice for minimizing the chance of large rocks falling onto the roadway?

A. build a retaining wall B. control the flow of water C. cover the slope with vegetation D. install a mesh fence E. install rock bolts

Environmental & Atmospheric Sciences

Showery weather and cumuliform clouds point to the presence of ________

A) an orographic lift of air B) an anticyclonic descent of air C) instability D) relatively few condensation nuclei E) atmospheric equilibrium

Environmental & Atmospheric Sciences

What is the main hurdle to replacing our current energy system (based on gasoline and coal) with one based on hydrogen?

A. The hydrogen does not occur naturally. B. We have not developed the technology to produce it. C. Hydrogen is highly flammable. D. We haven't yet invented a system to extract energy out of hydrogen.

Environmental & Atmospheric Sciences

What do glaciers do in an ice age?

A) They move faster toward the sea. B) They cover the entire Earth. C) They advance toward the equator. D) They become more dense.

Environmental & Atmospheric Sciences