Air and Atmosphere MCQ App Download | Class 6 Science MCQs e-Book PDF | 6
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Study Air and atmosphere Multiple Choice Questions (MCQ) and Answers PDF to maximize middle school STEM. Download the Air and Atmosphere MCQ PDF e-Book, Ch. 1-6 to learn Class 6 Science Course. Study Air and Processes Multiple Choice Questions and Answers (MCQs) PDF, Air and Atmosphere Quiz Questions and Answers for science virtual classroom systems. Download the Air and Atmosphere MCQs App: Free Class 6 Science MCQ App to learn air and processes, gas properties and air, atmosphere: basic facts test prep for science STEM virtual platforms.

Free Air and Atmosphere MCQ App Download (Android & iOS): Exhaled air contains 16% oxygen and about 4% of carbon dioxide, the rest of 80% is; MCQ with answers: argon, neon, and nitrogen. Practice Air and Processes MCQ Questions, download Apple Book (Free Chapter) to maximize middle school STEM.

Air and Atmosphere MCQ with Answers PDF Download – Test 6

MCQ 26: Respiration takes place at/in:

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

MCQ 27: 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

MCQ 28: The condensation point of nitrogen gas is:

  1. −156 °C
  2. −166 °C
  3. −196 °C
  4. −186 °C

MCQ 29: Oxidation is accompanied by:

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

MCQ 30: Other than nitrogen and oxygen, the composition of the rest of the gases is about:

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

Air and Atmosphere MCQ App & e-Book – Class 6 Science Entrance Exam

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