How much portion of eye ball is visible to us ?
How much portion of eye ball is visible to us ?
A) 1/4th
B) 1/6th
C) 1/5th
D) 1/7th
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How much portion of eye ball is visible to us ?
A) 1/4th
B) 1/6th
C) 1/5th
D) 1/7th