What is Respiration MCQs & Quiz Online PDF Book Download

What is respiration multiple choice questions (MCQs), what is respiration quiz answers to learn elementary school science online courses. Plant photosynthesis and respiration MCQs, what is respiration quiz questions and answers for online elementary education degree. Photosynthesis and respiration, photosynthesis for kids, science facts for kids, what is respiration test prep for elementary school teaching certification.

Learn science MCQs: waste products of process of respiration are, with choices oxygen + co2, carbon dioxide & water, food + oxygen, and none of them for online elementary education degree. Free science student portal for online learning what is respiration quiz questions, MCQs to find questions answers based online learning tests.

MCQ on What is Respiration PDF Book 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