Class 7 Science Online Tests
Sewage System MCQ (Multiple Choice Questions) PDF Download
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The Sewage system Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sewage System MCQ PDF e-Book) download to practice Grade 7 Science Tests. Study Importance of Water Multiple Choice Questions and Answers (MCQs), Sewage System quiz answers PDF for homeschool certificate courses. The Sewage System MCQ App Download: Free learning app for safe and drinking water, fresh water, water treatment test prep for taking online classes.
The MCQ: Untreated sewage should not be pumped into; "Sewage System" App Download (Free) with answers: Water tanks; Water reservoirs; Rivers and streams; Oceans; for homeschool certificate courses. Solve Importance of Water Quiz Questions, download Apple eBook (Free Sample) for free online courses.
Sewage System MCQs: Questions and Answers PDF Download
The soil and sand is settled at the bottom in
- metal screen
- grit tank
- sludge tank
- filter bed
Untreated sewage should not be pumped into
- water tanks
- water reservoirs
- rivers and streams
- oceans
In country area, untreated sewage is pumped into tanks known as
- septic tanks
- sewage tanks
- grit tanks
- sludge tanks
The remaining sewage after it has passed through the sludge tank is known as
- treated sewage
- effluent
- clinker
- distillate
Which gas is often used as a energy source at the city's wastewater treatment plants?
- ethane
- carbon
- methane
- nitrogen
Class 7 Science Practice Tests
Sewage System Learning App: Free Download (Android & iOS)
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Grade 6 Science Career Tests
Grade 7 Science Practice Tests
Grade 6 Science MCQ Questions
- Light is absorbed by some substances, these substances are known as
- Raw egg is completely different in shape, color, taste, smell from
- Gas release on mixing fruits salt with water is
- Cells that detect change are known as
- Green pigment in leaves and stem of plants, that absorbs sunlight for process of photosynthesis is known as