This video is on how an Atoll is formed.

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Geography playlist
   • Geography terms and definitions  

Economy playlist
   • Economics  
   • Indian Economy  UPSC Current Affairs  

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Indian history playlist
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Govt of India schemes playlist
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Map based learning
   • Map based learning  

Climatology playlist
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Previous year solved question paper analysis
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Environment & Ecology playlist
   • Environment and Ecology for UPSC  

International relations playlist
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Check the other playlists of NCERT Geography videos
Class 6 https://goo.gl/DDFtIF
Class 7 https://goo.gl/ppPK05
Class 8 https://goo.gl/OD3Gwh
Class 9 https://goo.gl/AIEXxQ
Class 10 https://goo.gl/inWIAR
Class 11 https://goo.gl/Pn5EIE
Class 11 (Part 2) https://goo.gl/X4zY9K
Class 12 https://goo.gl/Kszpz5