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Vitamin A (a) _____ our eye-sight. Blindness is caused by the deficiency of vitamin A. Molafish which (b) _____ in our rivers and canals contains a lot of vitamin A. We (c) _____ a lot of molafish as well as vegetables to protect our eye-sight. We should drink pure water at regular internals too. It (d) _____ essential for our body. We (e) _____ without drinking water.