Posts by Gourahari Pradhan
Volunteers for HEALTH
Message 15 : Water Purification
Volunteers for HEALTH Message 15 : Water Purification Disinfection of wells (to prevent water borne diseases) 1. Calculate roughly the volume of wa...
Volunteers for HEALTH Message 15 : Water Purification Disinfection of wells (to prevent water borne diseases) 1. Calculate roughly the volume of wa...
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