Importance of Water Multiple Choice Questions 20 PDF Download

Learn importance of water MCQs, grade 7 science test 20 for online courses learning and test prep, safe and drinking water multiple choice questions and answers. Safe and drinking water revision test includes science worksheets to learn for 7th grade science problems online free.

Science multiple choice questions (MCQ) on hot water also stimulates growth of with options fungi, algae, bacteria and viruses, safe and drinking water quiz for competitive exam prep, viva interview questions with answers key. 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

A

MCQ. Number of 'oceans' on earth is

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

B

MCQ. Feces and urine is also part of

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

C

MCQ. On earth percentage of fresh water is

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

A

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

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

C