Which one of the following factors is NOT connected with planetary wind system ?

The pattern of planetary winds, also known as the general circulation of the atmosphere, is driven by several specific factors. According to standard geographical texts, these include the latitudinal variation of atmospheric heating, the emergence of pressure belts, and the rotation of the Earth, which creates the Coriolis force [3]. Additionally, the migration of these pressure belts occurs seasonally due to the apparent path of the Sun, which shifts the Intertropical Convergence Zone (ITCZ) and associated wind systems [2]. While the Earth's rotation is a primary driver of wind deflection, the Earth's revolution around the Sun is not directly listed as a factor connected with the planetary wind system itself; rather, it is the 'apparent path' or seasonal migration resulting from the Earth's tilt and orbit that influences the belts' positions [2]. Therefore, Earth's revolution is the factor not directly connected.

Sources

1. [1] FUNDAMENTALS OF PHYSICAL GEOGRAPHY, Geography Class XI (NCERT 2025 ed.) > Chapter 9: Atmospheric Circulation and Weather Systems > General circulation of the atmosphere > p. 79
2. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > 23.4. Pressure systems and General Circulation > p. 316
3. [3] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 14: Climate > Pressure and Planetary Winds > p. 139