what Ihave learnt ? class 8 chapter 1 science
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What are the chapters in Class 8 science?
Class 8th Science NCERT Textbook
Preface – ToC.
Chapter 1: CROP PRODUCTION AND MANAGEMENT.
Chapter 2: MICROORGANISMS : FRIEND AND FOE.
Chapter 3: SYNTHETIC FIBRES AND PLASTICS.
Chapter 4: MATERIALS : METALS AND NON-METALS.
Chapter 5: COAL AND PETROLEUM.
Chapter 6: COMBUSTION AND FLAME.
Explanation:
(a) Preparation of soil: Soil is prepared well before planting a crop. This is called tilling the soil. Ploughing helps in loosening and turning the top soil upside down and also in mixing the heaps of compost with the soil.
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what is irrigation ? describe two methods of irrigation which conserve water
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