Describe how a jet stream affects the movement of air masses.

Jet streams generally push air masses around, moving weather systems to new areas and even causing them to stall if they have moved too far away. ... If the jet stream dips south, for example, it takes the colder air masses with it. Jet streams also have an impact on air travel and are used to determine flight patterns

Explanation: Based on what i've learn:>

analyze the map below and answer the question that follows.

what does the map above tell us about the endemity of typhoid fever?

a.

there is greater occurrence of the disease in the western hemisphere.

b.

there is greater occurance of the disease in the northern hemisphere.

c.

countries located in equatorial regions are more likely to have incidents of typhoid fever.

d.

typhoid fever is more rampant among caucasian populations.