Composition of Air MCQs Quiz Worksheet PDF Download

Composition of air multiple choice questions (MCQs), composition of air tesr prep for elementary school distance learning, online courses. Practice air and atmosphere multiple choice questions (MCQs), composition of air quiz questions and answers for 6th grade science placement test.

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MCQ on Composition of Air Quiz PDF Download

MCQ: A greenhouse gas that absorbs energy and maintains earth's temperature is

  1. carbon dioxide
  2. oxygen
  3. nitrogen
  4. argon


MCQ: Main constituent in air is

  1. nitrogen
  2. oxygen
  3. argon
  4. water vapor


MCQ: In desert areas, water vapor content is

  1. different
  2. higher
  3. low
  4. constant


MCQ: In humid areas, water vapor content is

  1. higher
  2. lower
  3. constant
  4. none of them


MCQ: Water vapor is less dense than

  1. temperature
  2. air
  3. dust
  4. space