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Learn Air and atmosphere Multiple Choice Questions (MCQ Quiz) with Answers PDF (Air and Atmosphere MCQ PDF e-Book) download 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 Study App: Free Class 6 Science MCQ App to learn air and processes, atmosphere: basic facts, composition of air, fractional distillation of air test prep to build STEM understanding online.

Free "Air and Atmosphere" App (iOS & Android) with MCQ: Breathing is a process that refers to the inhaling and exhaling of; with answers: air, gas, molecule, and proton for science LMS online access. Practice Air and Processes MCQ Questions, download Apple Book (Free Chapter) to expand STEM learning access.

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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

Class 6 Science Notes App & e-Book – Air and Atmosphere Exam Prep

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