Environmental Pollution | Ozone Layer Depletion | Lesson 04 | ඕසෝන් වියන හායනය

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Thank You sir ......

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Godak pin sir 🙏🏻❤️

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Thanks sir 🥰🥰

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Thanx sir hugak😃😃

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Thanks Sir🙏

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Thnq sir

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sir water pollution wala ithuru videos tikath ikmanin danawada...

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Sir sound ek aduyi

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Ow ahenne na neda hariyata 😕

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Ane sir puluwannam 2020 A/l paper eke Organic Structured Essay ekata wiwaranayak karala dennako sir.🙏

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chemistry made easy chanel eka balanna

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God

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Sr man nodanna nisai ahanne oson viyana jet wage yana yodagena karana vivida grahaloka tharanayan waladi oson viyana ta hani wen nada sr ulkapatha warshawakadi oson viyana ta hani wenawada prutuwiue guruthwa karshana balayata meka oson viyana udau wenawada karuna karala piliturak dena sr

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Godak pin sir🙏❤️

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Thank u sir❤