Importance of Water Multiple Choice Questions and Answers 21 pdf eBooks Download

Learn importance of water MCQs, grade 7 online science test 21, crops and irrigation multiple choice questions and answers. Crops and irrigation revision test has science worksheets, helping answer key with choices as hydration, fertilization, irrigation and pollination of multiple choice questions (MCQ) with crops and irrigation quiz as water supply through pipelines and tube wells to farm is known as for competitive exam prep, viva interview questions. Free science study guide to practice crops and irrigation quiz to attempt multiple choice questions based test.

MCQs on Importance of Water Quiz pdf Download Worksheets 21

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