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Balochistan Board > Class 7 > General Science > Section 9.1: Refraction of Light

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Abdullah Memon
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Sep 2017
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Abdullah Memon says...

Dear sir,

You are doing great work to help students.

I want to suggest that if you can add solutions of exercises with written material as well as video explain. I mean to prepare the student for their exams. Currently these videos helps students to make their concepts clear. but how to attempt papers what they need to write in answer scripts .

I hope you understand.

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