Class 7 Science MCQs – Certification Test 5

Water Treatment Trivia (Question 5) – Learning App & e-Book Download

Download eBook:

Download Class 7 Science e-Book with Trivia – Google Book

Download Class 7 Science iBook with Trivia – Apple Book

Download Class 7 Science e-Book with Trivia – Kobo Book

Apps:

MCQ 5: Fluoride is also added to water, which helps in preventing:

infection
sickness
fever
tooth decay

Previous MCQ

Next MCQ

Water Treatment Trivia App & e-Book – Class 7 Science Exam Prep

Refractive Index MCQs

Chemical Effect of Electric Current MCQs

Refraction of Light MCQs

Electric Motors MCQs

Telescopes MCQs

Food Chains and Food Webs MCQs

Ionic Bonds MCQs

Electrical Circuits and Currents MCQs

Fuses and Circuit Breakers MCQs

Free Water Treatment Learning App – Download from Play & App Store

The App: Water Treatment Trivia App to study Water Treatment Notes, 7th Grade Science Trivia App, and 6th Grade Science Trivia App to strengthen science understanding online.

The "7th Grade Science Learning" App Download: Free Water Treatment Trivia App (Android & iOS) to study lab safety rules. Download App Store & Play Store Study Apps with all functionalities for middle school online science.