Air and Atmosphere MCQ App | Class 6 Science MCQ e-Book PDF Download | 2
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Class 6 Science MCQs – Practice Test 2 (Chapter 1)

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Learn Air and atmosphere Multiple Choice Questions (MCQ Quiz) with Answers PDF to expand STEM learning access. Download the Air and Atmosphere MCQ PDF e-Book, Ch. 1-2 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 LMS online access. Download the Air and Atmosphere MCQ App: Free Class 6 Science App to learn air and processes, atmosphere: basic facts, composition of air, fractional distillation of air test prep to build STEM understanding online.

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Air and Atmosphere MCQ PDF Download – Practice Test 2

MCQ 6: Breathing is a process that refers to the inhaling and exhaling of:

  1. gas
  2. air
  3. molecule
  4. proton

MCQ 7: Greenhouse gases and other harmful gases are bringing huge damage to the atmosphere like:

  1. acid rain
  2. global warming
  3. ozone hole
  4. all of them

MCQ 8: The process of burning under the presence of oxygen is known as:

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

MCQ 9: In desert areas, the water vapor content is:

  1. different
  2. higher
  3. low
  4. constant

MCQ 10: To perform fractional distillation of air, it must be liquefied and then purified to remove:

  1. dust
  2. molecule
  3. atom
  4. rust

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