Class 7 Science Online Tests
Safe and Drinking Water MCQ (Multiple Choice Questions) PDF Download
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The Safe and drinking water Multiple Choice Questions (MCQ Quiz) with Answers PDF (Safe and Drinking Water MCQ PDF e-Book) download to practice Grade 7 Science Tests. Learn Importance of Water Multiple Choice Questions and Answers (MCQs), Safe and Drinking Water quiz answers PDF for homeschool certificate courses. The Safe and Drinking Water MCQ App Download: Free learning app for safe and drinking water, fresh water, water treatment test prep for taking online classes.
The MCQ: When algae grows on the surface of water, it prevents; "Safe and Drinking Water" App Download (Free) with answers: Access of bacteria in water; Access of sunlight in water; Growth of fungi; Growth of ferns and mosses; for homeschool certificate courses. Solve Importance of Water Quiz Questions, download Google eBook (Free Sample) for free online courses.
Safe and Drinking Water MCQs: Questions and Answers PDF Download
Oil can be poison for
- insect's life
- aquatic life
- animal's life
- human life
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 poison gets more concentrated as it moves through
- water
- food chain
- fish body
- vascular bundles in aquatic plants
Skin diseases, eye infections and diarrhea are the examples of
- water borne diseases
- water washed diseases
- water related diseases
- anti water diseases
Fish in the ponds and lakes die because the algae
- takes all the minerals from water
- takes all the oxygen from water
- prevents sunlight to enter water
- prevent from respiring
Class 7 Science Practice Tests
Safe and Drinking Water Textbook App: Free Download (iOS & Android)
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7th Grade Science MCQs eBook Download
Grade 6 Science Career Tests
Grade 7 Science Practice Tests
Grade 6 Science MCQ Questions
- A technique in which two liquids are separated by heating process is known as
- One molecule of methane is made up of one carbon and four
- Benefit of streamlined body is that, it helps animal to move freely without
- A common method of separating an insoluble solid from a liquid is known as
- Plant cells in which chloroplast isn't present are known as