Air and Atmosphere Multiple Choice Questions and Answers 9

Air and atmosphere MCQs, air and atmosphere quiz answers 9 to learn elementary school science courses online. Air and water multiple choice questions (MCQs), air and atmosphere quiz questions and answers for online elementary education degree. The atmosphere, gas properties and air, air and processes test for elementary school teaching certification.

Learn elementary school science multiple choice questions (MCQs): The atmosphere, gas properties and air, air and processes, with choices o2, o3, o4, and o5 for online elementary education degree. Free science study guide for online learning air and water quiz questions to attempt multiple choice questions based test.

MCQ on Air and Atmosphere Worksheets 9 PDF Book Download

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


MCQ: Chemical formula of ozone is

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


MCQ: A blanket of gases surrounding 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 production of thermal and light energy is known as

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