Importance of Water Multiple Choice Questions and Answers 21 PDF Download

Importance of water multiple choice questions, learn grade 7 science online test prep 21 for elementary school online courses, distance learning for exam prep. Practice crops and irrigation multiple choice questions (MCQs), importance of water quiz questions and answers for science class for 7th grade assessment test.

Study elementary school science multiple choice questions (MCQs): water supply through pipelines and tube wells to farm is known as, for free online courses with choices hydration, fertilization, irrigation, and pollination, crops and irrigation quiz with science practice tests starting from what is science to all topics of class 7 science. Free science study guide for online learning crops and irrigation quiz questions to attempt multiple choice questions based test.

MCQs on Importance of Water Worksheets 21 Quiz PDF Download

MCQ: Water supply through pipelines and tube wells to farm is known as

  1. fertilization
  2. hydration
  3. irrigation
  4. pollination

C

MCQ: Waste water from houses, buildings and other areas is called

  1. waste water
  2. sewage
  3. seepage
  4. aquarium waste

B

MCQ: Chlorine helps

  1. to kill bacteria
  2. in heating water
  3. in cooling water
  4. to evaporate water

A

MCQ: Remains of salt over soil after evaporation of water is known as

  1. water logging
  2. salivation
  3. dehydration
  4. hydration

D

MCQ: Litters such as plastic bags are harmful for

  1. fish
  2. turtles
  3. alligators
  4. plants

B