Composition of Atmosphere MCQs Test and Answers pdf Download

Practice composition of atmosphere MCQs and earth-science for test prep and learning. Free atmosphere composition notes has multiple choice questions (MCQ) with composition of atmosphere quiz as percentage of nitrogen in air is equal to with answering options -0.12, 0.21, 0.01 and 0.05 for exam preparation. Study to learn composition of atmosphere quiz with MCQs to find questions answers based online tests.

MCQs on Composition of Atmosphere

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