Module 3_5 Quiz

1. Why are surface-based and elevated ducts most common in the subtropics over the eastern part of oceans?

a) Ocean provide a surface moisture source.
b)The subtropics are where high pressure systems and sinking air is common.
c) The eastern parts of oceans often contain cold water currents which favor temperature inversions and the trapping of moisture at lower levels.
d)All of the above make ducting more common in the subtropics over the eastern part of oceans.
e) None of the above make ducting more common in the subtropics over the eastern part of oceans.

2. Why is ducting over the ocean relatively more common in regions with low precipitation?

a) Rain drops block EM transmissoins, preventing duct formation.
b) More solar radiation in these regions reaches the surface, causing surface ducts to form.
c) Areas with low precipitation are associated with high pressure and sinking air.
d) All of the above make ducting more likely.
e) None of the above make ducting more likely.