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picture1_Environmental Issues Ncert Pdf 49596 | Ch16 4


picture2_Environmental Issues Ncert Pdf 49596 | Ch16 4 picture3_Environmental Issues Ncert Pdf 49596 | Ch16 4

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File: Environmental Issues Ncert Pdf 49596 | Ch16 4
NCERT Solutions for Class 12 Biology Chapter 16 Environmental Issues Class 12 Chapter 16 Environmental Issues Exercise Solutions Exercise : Solutions of Questions on Page Number : 286 Q1 : ...

icon picture PDF Filetype PDF | Posted on 19 Aug 2022 | 2 years ago
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...Ncert solutions for class biology chapter environmental issues exercise of questions on page number q what are the various constituents domestic sewage discuss effects discharge a river answer is waste originating from kitchen toilet laundry and other sources it contains impurities such as suspended solid sand salt clay colloidal material fecal matter bacteria plastic cloth fiber dissolved materials nitrate phosphate calcium sodium ammonia disease causing microbes when organic wastes enter water bodies serves food source micro organisms algae result population these in body increases here they utilize most oxygen their metabolism this results an increase levels biological demand bod death aquatic also nutrients lead to growth planktonic algal bloom causes deterioration quality fish mortality list all that you generate at home school or during your trips places could very easily reduce which would be difficult rather impossible generated include bags paper napkin toiletries peelings veg...
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