Composition of Atmosphere MCQs Quiz Worksheet PDF Download

Learn composition of atmosphere MCQs in earth-science quiz for test prep. Atmosphere composition quiz questions has multiple choice questions (MCQ), composition of atmosphere test as the percentage of nitrogen in air is equal to. Answer key help with choices as -0.12, 0.21, 0.01 and 0.05 problem solving for competitive exam, viva prep, interview questions worksheets. Free Earth-science revision notes to practice composition of atmosphere quiz with MCQs to find questions answers based online tests.

MCQs on Composition of Atmosphere Quiz PDF Download

MCQ. The percentage of nitrogen in air is equal to

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


MCQ. The gas which has percentage equal to 78% in air is the

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


MCQ. The mixture of gases around us is regarded as

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