Introduction

تعارف

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Physical change

طبعي تبديليون

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Chemical change

ڪيميائي تبديليون

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Environment & physical & chemical change

ماحول ۽ طبعي ۽ ڪيميائي تبديلي

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Chemical Fertiliser

ڪيميائي ڀاڻ

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Chapter summary

اختصار

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Review questions (Part 1)

دور جا سوال (حصو پھريون)

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Review questions (Part 2)

دور جا سوال (ٻيو)

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