darker region in showdow is
a)umbra b)penumbra
c)both
d)none
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umbra
The umbra is the dark center portion of a shadow. The Moon's umbra causes total solar eclipses, and the Earth's umbra is involved in total and partial lunar eclipses. The umbra is the darkest type of shadow.
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1
Answer:
option a umbra
Explanation:
The umbra ( latin word for shadow) is the innermost and darkest part of shadow
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