Importance of Water Multiple Choice Questions Test 20 Tests pdf Download

Practice science test 20 on importance of water MCQs, grade 7 safe and drinking water multiple choice questions and answers. Safe and drinking water revision test has science worksheets, answer key with choices as fungi, algae, bacteria and viruses of multiple choice questions (MCQ) with safe and drinking water quiz as hot water also stimulates growth of for competitive exam prep, viva interview questions. Free science study guide to learn safe and drinking water quiz to attempt multiple choice questions based test.

MCQs on Importance of Water Quiz pdf Download Worksheets 20

MCQ. Hot water also stimulates growth of

  1. algae
  2. fungi
  3. bacteria
  4. viruses


MCQ. Number of oceans on earth is

  1. 4
  2. 5
  3. 6
  4. 7


MCQ. Feces and urine is also part of

  1. garbage
  2. treated waste
  3. untreated waste
  4. all of them


MCQ. On earth percentage of fresh water is

  1. 0.03
  2. 0.05
  3. 0.1
  4. 0.2


MCQ. Solid matter settled at bottom is scraped away by electricity in

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