Air and Atmosphere Multiple Choice Questions Test 6

Practice science test 6 on air and atmosphere MCQs, grade 6 air and processes multiple choice questions and answers. Air and processes revision test has science worksheets, answer key with choices as night, all of these, day time and evening of multiple choice questions (MCQ) with air and processes quiz as respiration takes place at/in for competitive exam prep. Free science study guide to learn air and processes quiz to attempt multiple choice questions based test.

MCQs on Air and Atmosphere Quiz pdf Download Worksheets 6

MCQ. Respiration takes place at/in

  1. all of these
  2. night
  3. day time
  4. evening


MCQ. Exhaled air contains 16% oxygen and about 4% of carbon dioxide, rest of 80% is

  1. neon
  2. argon
  3. nitrogen
  4. none of them


MCQ. Condensation point of nitrogen gas is

  1. (-156°C)
  2. (-166°C)
  3. (-196°C)
  4. (-186°C)


MCQ. Oxidation is accompanied by

  1. volume
  2. heat & light
  3. light
  4. heat


MCQ. Other than nitrogen and oxygen, composition of rest of gases is about

  1. 4%
  2. 3%
  3. 2%
  4. 1%