Importance of Water Multiple Choice Questions and Answers 20 PDF Book Download

Importance of water MCQs, importance of water quiz answers 20 to learn elementary education online courses. Sewage system multiple choice questions (MCQs), importance of water quiz questions and answers for for online elementary education degree. Safe and drinking water, water everywhere, fresh water, sewage system test for elementary school teaching certification.

Learn elementary school science multiple choice questions (MCQs): Safe and drinking water, water everywhere, fresh water, sewage system, with choices 5, 4, 6, and 7 for online elementary education degree. Free science study guide for online learning sewage system quiz questions to attempt multiple choice questions based test.

MCQ on Importance of Water Worksheets 20 PDF Book Download

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