The Equatorial region has no other season except summer. What could be the reason ? 1. The length of day and night is more or less equal over the year 2. The Earth’s rotational velocity is • maximum at the Equator 3. The coriolis force is zero at the Equator Select the correct answer using the code given below:

The Equatorial region lacks distinct seasons primarily because the length of day and night remains more or less equal throughout the year [5]. This consistency occurs because the Sun's rays fall almost vertically on the Equator year-round, ensuring a steady receipt of solar radiation and high temperatures, which prevents the development of distinct winter or autumn seasons [4]. While it is true that the Earth's rotational velocity is maximum at the Equator [3] and the Coriolis force is zero there [5], these physical phenomena relate to the Earth's shape and wind deflection patterns rather than the seasonal temperature variations. The absence of seasons is a direct consequence of the stable solar zenith angle and the lack of significant variation in daylight hours, maintaining a perpetual 'summer-like' climate. Therefore, only the first statement provides a valid reason for the lack of seasonal change.

Sources

1. [4] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 19: The Motions of The Earth and Their Effects > Days Are Always Longer Than Nights at The Equator > p. 255
2. [5] https://education.nationalgeographic.org/resource/coriolis-effect/
3. [3] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 19: The Motions of The Earth and Their Effects > Equinox > p. 254
4. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > Causes of The Coriolis Effect > p. 309