Importance of Water Multiple Choice Questions and Answers 13 PDF Download

Learn importance of water multiple choice questions, grade 7 science online test 13 for elementary school degree online courses, distance learning for exam prep. Practice sewage system multiple choice questions (MCQs), importance of water quiz questions and answers for science class for science help for students.

Study elementary school science multiple choice questions (MCQs): in sewage treatment plants, large material is removed by, for free online courses with choices grit tank, metal screen, sludge tank, and filter bed, sewage system quiz to explore learning with online collaborative learning portal for online certifications. Free science study guide for online learning sewage system quiz questions to attempt multiple choice questions based test.

MCQs on Importance of Water Worksheets 13 Quiz PDF Download

MCQ: In sewage treatment plants, large material is removed by

  1. metal screen
  2. grit tank
  3. sludge tank
  4. filter bed

A

MCQ: Desalination plants are used to convert

  1. hot water to cold water
  2. cold water to hot water
  3. tasteless water to salty water
  4. salty water to tasteless water

D

MCQ: Population which does not have tap water in their homes, is

  1. two-third of the world population
  2. one-third of the world population
  3. half of the world population
  4. quarter of the world population

A

MCQ: Water can be kept clean by detergents, if they are

  1. not poisonous
  2. odorless
  3. biodegradable
  4. non biodegradable

C

MCQ: 'Distillation' can also be used to treat

  1. fresh water
  2. sewage water
  3. polluted water
  4. rain water

C