Photosynthesis Importance MCQs Quiz and Answers Tests pdf Download

Practice photosynthesis importance MCQs in science quiz for test prep. Plant photosynthesis and respiration quiz questions has multiple choice questions (MCQ) with photosynthesis importance test, answers as photosynthesis increases concentration of oxygen in air, which is necessary for all, answer key with choices as living organism, fossils, birds only and animals for competitive exam, viva prep, interview questions worksheets. Free science revision notes to learn photosynthesis importance quiz with MCQs to find questions answers based online tests.

MCQs on Photosynthesis Importance Quiz pdf Download

MCQ. Photosynthesis increases concentration of oxygen in air, which is necessary for all

  1. living organism
  2. fossils
  3. birds only
  4. animals


MCQ. Glucose and oxygen combine to form carbon dioxide and water plus

  1. oxygen
  2. energy
  3. neon
  4. nitrous oxide


MCQ. Photosynthesis decreases concentration of carbon dioxide in air and other harmful wastes, this increases purification of respiratory disease for

  1. none of them
  2. living beings
  3. only plants
  4. only animals


MCQ. Plant products like timber, rubber, herbs, medicines resin and oils are derived from

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


MCQ. All animals need oxygen and most of this oxygen comes from

  1. roots
  2. plants
  3. stem
  4. pollen grain