Grade 7 English MCQs

Importance of Water Multiple Choice Questions Test 2 Tests pdf Download

Practice science test 2 on importance of water MCQs, grade 7 distillation multiple choice questions and answers. Distillation revision test has science worksheets, answer key with choices as is built on mountains and high lands, uses a large amount of fuel, uses electric machinery for desalination and is built with expensive materials of multiple choice questions (MCQ) with distillation quiz as the desalination plant is very expensive because it for competitive exam prep. Free science study guide to learn distillation quiz to attempt multiple choice questions based test.

MCQs on Importance of Water: Worksheets 2 Quiz pdf Download

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 materials

A

MCQ. When algae grows on water surface, 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. 80%
  2. 90%
  3. 95%
  4. 97%

D

MCQ. As compared to using a hose to wash car, water bucket 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