Air and Atmosphere Multiple Choice Questions 6

Practice air and atmosphere MCQs, grade 6 online science test 6, air and processes multiple choice questions and answers. Air and processes revision test has science worksheets, helping 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, viva interview questions. Free science study guide to practice 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

B

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

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

C

MCQ. The condensation point of nitrogen gas is

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

C

MCQ. Oxidation is accompanied by

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

B

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

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

D