Importance of Water Multiple Choice Questions and Answers 2 PDF Download

Learn importance of water multiple choice questions, grade 7 science online test 2 for elementary school degree online courses, distance learning for exam prep. Practice distillation multiple choice questions (MCQs), importance of water quiz questions and answers for science class for grade 7 science tests for kids.

Study elementary school science multiple choice questions (MCQs): desalination plant is very expensive because it, for free online courses with choices is built on mountains and high lands, uses a large amount of fuel, uses electric machinery for desalination, and is built with expensive material, distillation quiz for online distance school education with interactive student portal for examination preparation. Free science study guide for online learning distillation quiz questions to attempt multiple choice questions based test.

MCQs on Importance of Water Worksheets 2 Quiz PDF Download

MCQ: Desalination plant is very expensive because it

  1. uses a large amount of fuel
  2. is built on mountains and high lands
  3. uses electric machinery for desalination
  4. is built with expensive material


MCQ: When algae grows on surface of water, it prevents

  1. access of bacteria in water
  2. access of sunlight in water
  3. growth of fungi
  4. growth of ferns and mosses


MCQ: Percentage of salty water is

  1. 0.8
  2. 0.9
  3. 0.95
  4. 0.97


MCQ: As compare to hose for car washing, bucketing uses

  1. less water
  2. more water
  3. equal water
  4. maybe less water or more


MCQ: Poison gets more concentrated as it moves through

  1. water
  2. food chain
  3. fish body
  4. vascular bundles in aquatic plants