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Question: 1 / 460

How much is the Earth's axis tilted from perpendicular to the plane of the ecliptic?

15 degrees

23.5 degrees

The Earth's axis is tilted from perpendicular to the plane of the ecliptic by approximately 23.5 degrees. This tilt, known as axial obliquity, is fundamental for the seasonal changes we experience on Earth. As the Earth orbits the Sun, this axial tilt causes different parts of the planet to receive varying amounts of sunlight throughout the year. This variation in sunlight is responsible for the changing seasons, with the Northern and Southern Hemispheres experiencing opposite seasons as the Earth orbits.

The significance of this tilt extends beyond just the changing seasons; it influences the climate, weather patterns, and ecosystems on our planet. The Earth's axial tilt is relatively stable, resulting in consistent seasonal patterns over millennia, although there are long-term variations due to gravitational interactions with other celestial bodies.

Understanding the precise angle of 23.5 degrees helps explain not just the nature of seasons but also phenomena such as the length of daylight and sun angles at various latitudes throughout the year.

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30 degrees

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