What is Respiration MCQs Quiz Worksheet PDF Download

Learn what is respiration MCQs, science test for online course learning and test prep to practice. Plant photosynthesis and respiration quiz questions has multiple choice questions (MCQ), what is respiration test to learn for 6th grade science exam.

Science practice test MCQ on waste products of process of respiration are with options oxygen + co2, carbon dioxide & water, food + oxygen and none of them problem solving skills for competitive exam, viva prep, interview questions with answer key. Free science revision notes to learn what is respiration quiz with MCQs to find questions answers based online learning tests.

MCQs on What is Respiration Quiz PDF Download

MCQ. Waste products of process of respiration are

  1. oxygen + CO2
  2. carbon dioxide & water
  3. food + oxygen
  4. none of them


MCQ. Largest percentage composition in air is of

  1. argon
  2. oxygen
  3. nitrogen
  4. carbon dioxide


MCQ. Balance of two gases is very important for all communities, these two gases are

  1. nitrogen & oxygen
  2. carbon dioxide and oxygen
  3. argon & nitrogen
  4. none of them


MCQ. Act of breaking of food substances in order to release energy is known as

  1. process
  2. transpiration
  3. respiration
  4. photosynthesis


MCQ. Photosynthesis reduces concentration of

  1. carbon dioxide
  2. oxygen
  3. energy
  4. neon