Consider the following statements: 1. The vernal equinox falls on March 21. 2. On equinox, the sun is directly overhead at the equator. 3. The changes in the day length on equinox result from the changes in the tilt of the earth with respect to the sun. W

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Q: 29 (NDA-II/2009)
Consider the following statements:
1. The vernal equinox falls on March 21.
2. On equinox, the sun is directly overhead at the equator.
3. The changes in the day length on equinox result from the changes in the tilt of the earth with respect to the sun.
Which of the statements given above is/are correct?

question_subject: 

Geography

question_exam: 

NDA-II

stats: 

0,12,21,13,1,12,7

keywords: 

{'equinox result': [0, 0, 1, 0], 'vernal equinox': [1, 0, 1, 2], 'equinox': [2, 0, 0, 0], 'day length': [0, 0, 1, 0], 'sun': [3, 0, 0, 6], 'equator': [10, 0, 6, 7], 'tilt': [0, 1, 1, 0], 'earth': [0, 1, 1, 1], 'changes': [4, 0, 2, 9]}

The correct answer is option 3: 1, 2, and 3 are all correct statements.

Statement 1 is correct: The vernal equinox occurs on March 21st. This is the time in the Northern Hemisphere when the sun crosses the celestial equator from south to north, marking the start of spring.

Statement 2 is correct: On the equinox, the sun is directly overhead at the equator. This means that the sun`s rays fall perpendicular to the equator, creating equal lengths of day and night worldwide.

Statement 3 is correct: The changes in day length on the equinox are a result of the changes in the tilt of the Earth with respect to the sun. The Earth`s tilt causes the varying angles at which sunlight reaches different parts of the planet, impacting the length of daylight hours.

Therefore, all three statements are correct, and option 3 is the correct answer.