Question

1 which statements correctly explain patterns we see in the earth-sun-moon system?
a a lunar eclipse happens every time there is a full moon.
b a lunar eclipse only happens when earth is directly between the sun and the moon.
c the moons phases are caused by earths shadow covering the moon each night.
d the moon appears to change shape because we see different portions of its sunlit half as it orbits earth.
e the moon produces its own light.

Explanation:

• Option A: Lunar eclipses do not occur at every Full Moon because the Moon's orbital plane is tilted relative to Earth's, so alignment is rare.
• Option B: A lunar eclipse requires Earth to block sunlight from reaching the Moon, which only happens when Earth is directly between the Sun and Moon during a Full Moon.
• Option C: Moon phases are not caused by Earth's shadow; they result from our view of the sunlit portion of the Moon.
• Option D: The Moon's phase changes as its orbit around Earth exposes different parts of its sunlit hemisphere to our view.
• Option E: The Moon does not produce its own light; it reflects sunlight.

Answer:

B. A lunar eclipse only happens when Earth is directly between the Sun and the Moon.
D. The Moon appears to change shape because we see different portions of its sunlit half as it orbits Earth.