Importance of Water Multiple Choice Questions and Answers 21 PDF Book Download
Importance of water MCQs, importance of water quiz answers 21 to learn elementary education online courses. Practice distillation multiple choice questions (MCQs), importance of water quiz questions and answers for science class. Free e-learning tutorial on crops and irrigation, sewage system, water treatment, safe and drinking water test prep for elementary school teaching certification.
Study elementary school science multiple choice questions (MCQs): crops and irrigation, sewage system, water treatment, safe and drinking water, with choices sewage, waste water, seepage, and aquarium waste for online elementary education degree. Free science study guide for online learning distillation quiz questions to attempt multiple choice questions based test.
MCQ on Importance of Water Worksheets 21 PDF Book Download
MCQ: Water supply through pipelines and tube wells to farm is known as
MCQ: Waste water from houses, buildings and other areas is called
- waste water
- aquarium waste
MCQ: Chlorine helps
- to kill bacteria
- in heating water
- in cooling water
- to evaporate water
MCQ: Remains of salt over soil after evaporation of water is known as
- water logging
MCQ: Litters such as plastic bags are harmful for