Paani

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Impact from a water drop causes an upward "rebound" jet surrounded by circular capillary waves.

Paani dunia ke sab e jaada common liquid hae. Ii dunia ke 70% surface ke cover kare hae.[1] Janwar aur perr bina paani ke jinda nai rahe sake hae. Safaa paani ke koi mahak nai hae, koi sawaad nai hae aur koi rang nai hae. Talaab, samundar, au naddi, paani se banaa rahe hae. Barsaat paani hae jon ki aasmaan me badal se gire hae. Jab paani dher thanda hoe jaae hae tab ii ice ban jaae hae. Jab paani bahut garam hoe jaae hae tab ii boil hoe ke bhaap ban jaae hae.

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