Class 7 Science MCQs - Chapter 13
Importance of Water Multiple Choice Questions (MCQ) PDF Download - 2
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The Importance of water Multiple Choice Questions (MCQ Quiz) with Answers PDF (Importance of Water MCQ PDF e-Book) download Ch. 13-2 to learn Grade 7 Science Course. Study Distillation Multiple Choice Questions and Answers (MCQs) PDF, Importance of Water Quiz Questions and Answers to study online homeschool courses. The Importance of Water MCQ App Download: Grade 7 Science Learning App [Free] for distillation, safe and drinking water, fresh water, saving water test prep for online degree programs.
The MCQs: Desalination plant is very expensive because it; "Importance of Water" App (Android, iOS) with answers: is built on mountains and high lands, uses a large amount of fuel, uses electric machinery for desalination, and is built with expensive material to study online homeschool courses. Practice Distillation MCQ Questions, download Apple e-Book (Free Sample) for online classes.
Importance of Water MCQs with Answers PDF Download: Quiz 2
Desalination plant is very expensive because it
- uses a large amount of fuel
- is built on mountains and high lands
- uses electric machinery for desalination
- is built with expensive material
When algae grows on the surface of water, it prevents
- access of bacteria in water
- access of sunlight in water
- growth of fungi
- growth of ferns and mosses
The percentage of salty water is
- 0.8
- 0.9
- 0.95
- 0.97
As compare to hose for car washing, bucketing uses
- less water
- more water
- equal water
- maybe less water or more
The poison gets more concentrated as it moves through
- water
- food chain
- fish body
- vascular bundles in aquatic plants
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