Air and Processes MCQs Quiz Worksheet PDF Download

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MCQs on Air and Processes Quiz PDF Download

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

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


MCQ: Process of burning under presence of oxygen is known as

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


MCQ: Intake of carbon dioxide and giving out of oxygen is only process named

  1. photosynthesis
  2. respiration
  3. rusting
  4. excretion


MCQ: In fish, respiration takes place through

  1. gills
  2. lungs
  3. throat
  4. tail


MCQ: Rust is actually

  1. iron oxide
  2. hydro oxide
  3. nitro oxide
  4. none of them