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Why does the moon appear to change its shape every day?
  • a)
    Because it revolves around the Earth
  • b)
    Because it rotates around the Sun
  • c)
    Because it rotates and revolves at the same speed
  • d)
    Because it has its own light
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Why does the moon appear to change its shape every day?a)Because itrev...
Understanding the Moon's Phases
The appearance of the Moon changing shape every day is primarily due to its orbit around the Earth. This phenomenon is known as the lunar phases.
Why Does the Moon Change Shape?
- The Moon does not produce its own light; instead, it reflects sunlight.
- As the Moon orbits the Earth, different portions of its surface are illuminated by the Sun.
The Moon's Orbit
- The Moon takes approximately 29.5 days to complete one orbit around the Earth.
- As it moves, we see varying parts of the illuminated side, leading to different phases.
The Phases of the Moon
- New Moon: The Moon is positioned between the Earth and the Sun, making it invisible.
- Waxing Crescent: A small sliver of the Moon becomes visible as it starts to move away from the Sun's direct line.
- First Quarter: Half of the Moon is illuminated.
- Waxing Gibbous: More than half the Moon is visible as it approaches a full moon.
- Full Moon: The entire face of the Moon is illuminated.
- Waning Gibbous: The light starts to decrease after the full moon.
- Last Quarter: Again, half of the Moon is illuminated but on the opposite side.
- Waning Crescent: Only a small sliver is visible before returning to a new moon.
Conclusion
The changing shapes of the Moon, or its phases, result from its revolution around the Earth. As the Moon orbits, we see varying amounts of its illuminated surface, creating the beautiful cycle of lunar phases we observe in the night sky.
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Community Answer
Why does the moon appear to change its shape every day?a)Because itrev...
The moon appears to change its shape every day due to its phases, which occur as it orbits around the Earth.
This changing position affects how much sunlight reflects off the moon's surface, giving it the appearance of different shapes, like a crescent or a full moon.
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