Air and Atmosphere Multiple Choice Questions 9

Practice air and atmosphere MCQs, grade 6 online science test 9, the atmosphere multiple choice questions and answers. The atmosphere revision test has science worksheets, helping answer key with choices as increasing altitude, same height, constant height and decreasing height of multiple choice questions (MCQ) with the atmosphere quiz as there is no boundary between atmosphere and space, so density of atmosphere decreases with for competitive exam prep, viva interview questions. Free science study guide to practice the atmosphere quiz to attempt multiple choice questions based test.

MCQs on Air and Atmosphere Quiz PDF Download Worksheets 9

MCQ. There is no boundary between atmosphere and space, so the density of atmosphere decreases with

  1. same height
  2. increasing altitude
  3. constant height
  4. decreasing height


MCQ. The chemical formula of ozone is

  1. O3
  2. O2
  3. O4
  4. O5


MCQ. A blanket of gases surrounding the planet is known as

  1. ozone
  2. temperature
  3. season
  4. atmosphere


MCQ. Iron rusts when it comes in contact with

  1. carbon dioxide & water
  2. oxygen & water
  3. many gases
  4. nitrogen & oxygen


MCQ. A reaction in which oxygen is used up for the production of thermal and light energy is known as

  1. production
  2. combustion
  3. reaction
  4. respiration