Importance of Water App Download | Class 7 Science MCQs PDF e-Book
Class 7 Science MCQs: Chapter 13
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The Importance of water Multiple Choice Questions (MCQs) with Answers PDF (Importance of Water MCQs PDF e-Book) download Ch. 13-13 to study Class 7 Science Course. Learn Importance of Water Quiz Questions and Answers to learn online courses. The Importance of Water MCQs App Download: Free Class 7 Science Study [Free] App for sewage system, distillation, safe and drinking water, saving water test prep for online certifications.
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In sewage treatment plants, large material is removed by
Desalination plants are used to convert
The population which does not have tap water in their homes, is
Water can be kept clean by detergents, if they are
'Distillation' can also be used to treat
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