What causes polar jet streams to form?(1 point) Responses high-pressure systems high-pressure systems rapid changes in wind direction rapid changes in wind direction warm and cold air masses warm and cold air masses air masses moving away from each other

Answer 1

The correct response is "warm and cold air masses." Polar jet streams form due to the temperature differences between warm and cold air masses, which create a steep temperature gradient at the upper levels of the atmosphere. This difference in temperature leads to variations in air pressure and results in strong winds known as jet streams.