Question

how do jet streams operate?
they form between the hadley, ferrel and polar cells where warm and cold air meet high in the atmosphere
the axial tilt creates the only jet stream at the north pole.
they form at the equator and move in a straight path to the poles.
jet streams occur every 40,000 years due to earths orbit.

Explanation:

Jet - streams are fast - flowing, narrow air currents found in the upper levels of the atmosphere. They form at the boundaries between different atmospheric cells (Hadley, Ferrel, and polar cells) where there are significant temperature differences (warm and cold air meet). The other options are incorrect as axial tilt doesn't create the only jet stream at the north pole, they don't form at the equator and move in a straight path to the poles, and they don't occur every 40,000 years due to Earth's orbit.

Answer:

They form between the hadley, ferrel and polar cells where warm and cold air meet high in the atmosphere.