Air and Atmosphere Multiple Choice Questions 6

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Science multiple choice questions (MCQ) on respiration takes place at/in with options night, all of these, day time and evening, air and processes quiz for competitive exam prep, viva interview questions with answers key. 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

B

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

C

MCQ. 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, composition of rest of gases is about

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

D