Basic General Knowledge
In a normal human being, how much time does food take to reach the end of the intestine for complete absorption?

About 16 hours
About 10 hours
About 8 hours
About 12 hours

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Basic General Knowledge
Primary rainbow is formed when light suffers

either one or two internal refractions before emerging out of the drop
no internal refraction
two internal refractions before emerging out of the drop
one internal refractions before emerging out of the drop

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