Photosynthesis Importance MCQs Test and Answers pdf Download

Practice photosynthesis importance MCQs and science for test prep and learning. Free plant photosynthesis and respiration notes has multiple choice questions (MCQ) with photosynthesis importance quiz as photosynthesis increases concentration of oxygen in air, which is necessary for all with answering options living organism, fossils, birds only and animals for exam preparation. Study to learn photosynthesis importance quiz with MCQs to find questions answers based online tests.

MCQs on Photosynthesis Importance

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

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

A

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

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

B

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

B

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

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

B

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

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

B