Class 7 Online Courses

Chapter 14: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 14

Importance of Water Multiple Choice Questions (MCQ) PDF - 12

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The Trivia Quiz: Alum is a compound of two elements, those are; "Importance of Water" App APK Download (Free) with answers aluminum and sulfate, aluminum and nitrate, sodium and nitrate and sodium and sulfate to study e-learning courses. Practice water treatment quiz questions, download Kindle eBook (Free Sample) for distance learning.

Importance of Water Questions & Answers PDF Download: MCQ Quiz 12

MCQ 56: The alum is a compound of two elements, those are

A) aluminum and nitrate
B) aluminum and sulfate
C) sodium and nitrate
D) sodium and sulfate

MCQ 57: The most essential element for crop is

A) water
B) fertilizers
C) soil
D) humidity

MCQ 58: If not receives treatment, trachoma may cause

A) deep eye infection
B) eye injuries
C) blindness
D) dizziness

MCQ 59: The reason for presence of water underground is

A) oceans make tunnels due to high water pressure
B) due to salt in water, it starts making space in the soil for movement
C) some of the rain water is soaked into soil
D) rivers eventually run underground

MCQ 60: The largest sea on the earth is

A) Arabian sea
B) South China sea
C) Mediterranean sea
D) Dead sea

Importance of Water Learning App & Free Study Apps

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Importance of Water App (Android & iOS)

Importance of Water App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)