Q1
What causes seasons?
AEarth's revolution and axial tilt
BOnly Earth's rotation
COnly distance from the sun
DRandom weather changes
SSCClass 7 (SSC)Geography (भूगोल)Ch 1 · Topic 1
How Seasons Occur - Part 1
Seasons occur due to the Earth's revolution around the sun and the tilt of its axis, causing different regions to receive varying sunlight.
Core concept
Earth's axis is tilted at approximately 23.5 degrees, which remains constant as Earth orbits the sun throughout the year.
How it works
As Earth revolves around the sun, different hemispheres tilt towards or away from the sun at different times of the year.
Why it matters
When the Northern Hemisphere tilts towards the sun, it experiences summer, while the Southern Hemisphere experiences winter simultaneously.
Key detail
This combination of revolution and axial tilt is the primary reason for the changing seasons throughout the year.
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Quick notes
• Earth's axis tilted ~23.5 degrees.
• This tilt remains constant during orbit.
• Revolution + tilt causes seasons.
• Hemispheres tilt towards/away from sun.
• N. Hemisphere towards sun = summer.
• S. Hemisphere away = winter simultaneously.
• This combination causes season changes.
• It happens throughout the year.