Complex sentence: Part of the air rising at 60 ° latitude, diverges at high altitude toward the poles and creates the polar cell, while the rest moves toward the equator where it converges at 30 ° latitude, with the high level air of the Hadley cell.
Split into simpler sentences: Part of the air rising at 60 ° latitude, diverges at high altitude toward the poles and creates the polar cell. The rest moves toward the equator where it converges at 30 ° latitude with the high level air of the Hadley cell.