Air and Processes MCQs Quiz Worksheet PDF Download

Learn air and processes MCQs, science test for online course learning and test prep to practice. Air and atmosphere quiz questions has multiple choice questions (MCQ), air and processes test to learn for grade 6 science tutor questions with answers.

Science practice test MCQ on breathing is a process that refers to inhaling and exhaling of with options gas, air, molecule and proton problem solving skills for competitive exam, viva prep, interview questions with answer key. Free science revision notes to learn air and processes quiz with MCQs to find questions answers based online learning tests.

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