Air and Atmosphere Multiple Choice Questions 12

Learn air and atmosphere MCQs, grade 6 online science test 12, gas properties and air multiple choice questions and answers. Gas properties and air revision test has science worksheets, helping answer key with choices as argon, oxygen, nitrogen and carbon dioxide of multiple choice questions (MCQ) with gas properties and air quiz as the left over gas after process of combustion is generally for competitive exam prep, viva interview questions. Free science study guide to practice gas properties and air quiz to attempt multiple choice questions based test.

MCQs on Air and Atmosphere Quiz PDF Download Worksheets 12

MCQ. The left over gas after the process of combustion is generally

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


MCQ. The sphere that prevent the ultraviolet rays from sun is known as

  1. exosphere
  2. troposphere
  3. atmosphere
  4. stratosphere


MCQ. In humid areas, the water vapor content is

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


MCQ. The percentage composition of oxygen in air is

  1. 21%
  2. 31%
  3. 41%
  4. 51%


MCQ. Air is important on earth because it has necessary components essential for the life of

  1. plants
  2. animals
  3. organism
  4. plants, animals and other organisms