What causes polar jet streams to form?(1 point)
Responses
1rapid changes in wind direction
2high-pressure systems
3warm and cold air masses
4air masses moving away from each other
1 answer
The correct answer is (3) warm and cold air masses. Polar jet streams are caused by the large temperature difference between the polar regions and the warmer latitudes. This temperature difference creates a pressure gradient which causes the jet stream to form. The jet stream separates the cold polar air from the warmer air to the south, resulting in the formation of a narrow, fast-moving band of air called a jet stream.
1 answer