Solved UPSC CDS/OTA Question
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Q · Human Eye and Colourful WorldMedium · 45s
Night blindness is caused by the deficiency of:
TopicHuman Eye and Colourful World
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Rod cells need vitamin A to function well in dim light.
Final Answer: Option A - Vitamin A