Multiple choice

Seasons are caused on earth surface because of

  1. elliptical orbit of the earth

  2. rotation of earth

  3. inclination of the earth axis

  4. none of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Earth's seasons are caused by the 23.5-degree tilt of Earth's axis relative to its orbital plane. As Earth orbits the Sun, this fixed tilt means different parts of Earth receive varying amounts of direct sunlight throughout the year. When the Northern Hemisphere tilts toward the Sun, it's summer there; when it tilts away, it's winter. The elliptical orbit (option A) has minimal effect on seasons.

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