Respuesta :
the correct answer would be Cool and Warm air masses meeting near the equator.
ANSWER:
'Warm and cool air masses meeting near the North Pole' would likely to form a 'subtropical jet stream'.
EXPLANATION:
- Subtropical-jet stream is known as the space where there is a higher amount of force which is located at the upper level above the 'subtropical jet stream'.
- The exact location of the 'subtropical-jet stream' is located at the North phase of 30 Degrees and the reason behind this is due to the variation of air which lies on the region of mid-altitude and warmer equatorial air.