Importance of Water Multiple Choice Questions 2 PDF Download

Learn importance of water MCQs, grade 7 science test 2 for online courses learning and test prep, distillation multiple choice questions and answers. Distillation revision test includes science worksheets to learn for grade 7 science tests for kids.

Science multiple choice questions (MCQ) on desalination plant is very expensive because it with options is built on mountains and high lands, uses a large amount of fuel, uses electric machinery for desalination and is built with expensive material, distillation quiz for competitive exam prep, viva interview questions with answers key. Free science study guide to learn distillation quiz to attempt multiple choice questions based test.

MCQs on Importance of Water Quiz PDF Download Worksheets 2

MCQ. Desalination plant is very expensive because it

  1. uses a large amount of fuel
  2. is built on mountains and high lands
  3. uses electric machinery for desalination
  4. is built with expensive material

A

MCQ. When algae grows on surface of water, it prevents

  1. access of bacteria in water
  2. access of sunlight in water
  3. growth of fungi
  4. growth of ferns and mosses

B

MCQ. Percentage of salty water is

  1. 0.8
  2. 0.9
  3. 0.95
  4. 0.97

D

MCQ. As compare to hose for car washing, bucketing uses

  1. less water
  2. more water
  3. equal water
  4. maybe less water or more

A

MCQ. Poison gets more concentrated as it moves through

  1. water
  2. food chain
  3. fish body
  4. vascular bundles in aquatic plants

B