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Barf

Wikipedia se

Barf, ice ke ek ruup hae. Barf uu time bane hae jab hawaa me ke paani freeze hoe jaae hae. Isme suruu me alag alag ice crystal hawaa me suspended rahe hae lekin baad me jamiin pe gir jaae hae. Jab temperature 0 degrees se jaada hoe hae tab barf tagal ke paani ban jaae hae.