Class 7 Science MCQs - Chapter 13
Importance of Water Multiple Choice Questions (MCQs) PDF Download - 21
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The Importance of water Multiple Choice Questions (MCQs) with Answers PDF (importance of water MCQs PDF e-Book) download Ch. 13-21 to study Grade 7 Science Course. Learn Importance of Water Quiz Questions and Answers to learn e-learning courses. The Importance of Water MCQs App Download: Free learning app for crops and irrigation, sewage system, water treatment, safe and drinking water test prep for distance education.
The MCQ: Water supply through pipelines and tube wells to farm is known as; "Importance of Water" App Download (Free) with answers: Hydration; Fertilization; Irrigation; Pollination; to learn e-learning courses. Solve Crops and Irrigation MCQ Questions, download Google eBook (Free Sample) for online elementary school classes.
Importance of Water MCQs with Answers PDF Download: Quiz 21
Water supply through pipelines and tube wells to farm is known as
- fertilization
- hydration
- irrigation
- pollination
The waste water from houses, buildings and other areas is called
- waste water
- sewage
- seepage
- aquarium waste
Chlorine helps
- to kill bacteria
- in heating water
- in cooling water
- to evaporate water
The remains of salt over the soil after evaporation of water is known as
- water logging
- salivation
- dehydration
- hydration
Litters such as plastic bags are harmful for
- fish
- turtles
- alligators
- plants
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