To a perpendicular to the plane of ecliptic, Earths axis of rotation makes an angle of 23~ degrees. Had this angle been zero degree, which one among the following would result ?

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Q: 37 (NDA-I/2015)
To a perpendicular to the plane of ecliptic, Earth’s axis of rotation makes an angle of 23~ degrees. Had this angle been zero degree, which one among the following would result ?

question_subject: 

Geography

question_exam: 

NDA-I

stats: 

0,14,48,14,14,3,31

keywords: 

{'rotation': [1, 0, 0, 2], 'angle': [0, 0, 1, 0], 'perpendicular': [0, 1, 1, 2], 'axis': [0, 0, 0, 1], 'degrees': [0, 1, 0, 3], 'earth': [0, 1, 1, 1], 'season': [1, 0, 0, 3], 'night': [0, 0, 0, 1], 'day': [0, 0, 1, 0]}

The correct answer is option 1: There would have been no season.

The angle of 23~ degrees refers to the tilt of Earth`s axis of rotation in relation to the plane of the ecliptic (the path of Earth`s orbit around the Sun). This tilt is what causes the change in seasons as different parts of the Earth receive varying amounts of sunlight throughout the year.

If the angle were zero degrees, it means that Earth`s axis of rotation would be perpendicular to the plane of the ecliptic. In other words, the axis would be completely vertical, with no tilt. In this scenario, there would be no seasonal variation in the amount of sunlight received by different parts of the Earth. The Earth`s equator would receive the same amount of sunlight throughout the year, resulting in a consistent climate with no distinct seasons.

Options 2 and 3 are incorrect because without the tilt, the length of the day and night would not necessarily be the same throughout the year or all over the Earth. The tilt affects the length of daylight and darkness by shifting the angle at which the Sun`s rays hit different parts of the Earth`s surface, resulting in variations in day length.