Jet streams are found in the tropopause, which is the boundary between the troposphere and the stratosphere. They form here because this is where the greatest pressure and temperature differences between the cold polar air and warm tropical air exist. These “rivers of air” flow at high speeds, steering weather systems across the globe. ANSWER: (D) In the tropopause
Where are jet streams usually found? (A) In the mesosphere (B) In the ionosphere (C) In the ozonosphere (D) In the tropopause
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