What causes the jet streams to form?
A) pressure gradients
B) temperature gradients
C) pressure and temperature gradients
D) none of the above
Question 2
Jet streams not only play an essential role in the global transfer of thermal energy but also aid
A) eastbound airplanes.
B) westbound airplanes.
C) both eastbound and westbound airplanes.
D) landings and takeoffs.