Grade 6 English MCQs

Air and Atmosphere Multiple Choice Questions Test 9

Practice science test 9 on air and atmosphere MCQs, grade 6 the atmosphere multiple choice questions and answers. The atmosphere revision test has science worksheets, 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. Free science study guide to learn 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 density of atmosphere decreases with

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

B

MCQ. Chemical formula of ozone is

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

A

MCQ. A blanket of gases surrounding planet is known as

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

D

MCQ. Iron rusts when it comes in contact with

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

B

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

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

B