Class 7 Science MCQs (Grade 7) From Textbook
Free Importance of Water Quiz App | Class 7 Science e-Book PDF Download
Class 7 Science Certification MCQs – Practice Test 19 (Chapter 13)
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The MCQ: The worst disease of the water-related diseases is; "Importance of Water Quiz" App (iOS, Android) with answers: diarrhea, typhoid, bilharzia, and hepatitis to learn distance learning courses. Study Safe and Drinking Water MCQ Questions, download Google Book (Free Chapter) for online degrees.
The worst disease of the water-related diseases is
Fertilizers that are washed away into rivers help in formation of
The mortality rate in children due to polluted water or lack of water is
The spread of a disease through drinking water that is caused by water parasites, is known as
A larvae of a worm can get into the human body even by
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