CBSE Class 8 Answered
What are the causes of blindness?
Asked by Topperlearning User | 30 Jan, 2014, 10:40: AM
Expert Answer
(i) Blindness can be due to birth defects.
(ii) Some persons may lose their eyesight permanently due to some disease.
Answered by | 30 Jan, 2014, 12:40: PM
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