Composition of Atmosphere MCQs Quiz Worksheet PDF Download

Learn composition of atmosphere MCQs, earth science test for online learning courses and test prep to practice. Atmosphere composition multiple choice questions (MCQ), composition of atmosphere quiz questions and answers for high school earth science tests.

Earth science practice test MCQ: percentage of nitrogen in air is equal to with options -0.12, 0.21, 0.01 and 0.05 for daily quiz questions with online cognitive learning portal for students of class 6, 7 and 8. Free Earth science revision notes to learn composition of atmosphere quiz with MCQs to find questions answers based online learning tests.

MCQs on Composition of Atmosphere Quiz PDF Download

MCQ: Percentage of nitrogen in air is equal to

  1. -0.12
  2. 0.21
  3. 0.01
  4. 0.05


MCQ: Gas which has percentage equal to 78% in air is the

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


MCQ: Mixture of gases around us is regarded as

  1. ecosystem
  2. atmosphere
  3. environment
  4. climate