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Answer:
15. The Main source of light
16. it will formed when an object blocks light
17-18. The shading or darkening of one heavenly body by another.
19. A phenomenon when the moon is between the Sun and the Earth
20. A phenomenon when the Earth is between the Sun and the moon or the moon cannot be seen on Earth
EXPLANATION :
Explanation:
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-Archer✨
Answer :
15. Sun
16. Shadow
17 - 18 . Eclipse
19. Solar Eclipse
20. Solar Eclipses
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