Air and Atmosphere Multiple Choice Questions Test 12

Practice science test 12 on air and atmosphere MCQs, grade 6 gas properties and air multiple choice questions and answers. Gas properties and air revision test has science worksheets, 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 learn gas properties and air quiz to attempt multiple choice questions based test.

MCQs on Air and Atmosphere Quiz pdf Download Worksheets 12

MCQ. Left over gas after process of combustion is generally

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


MCQ. Sphere that prevent ultraviolet rays from sun is known as

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


MCQ. In humid areas, water vapor content is

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


MCQ. 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 life of

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