Composition of Atmosphere MCQs Quiz Worksheet PDF Download

Learn composition of atmosphere MCQs, earth science online test for elementary school exam prep for distance learning degree, free online courses. Practice atmosphere composition multiple choice questions (MCQs), composition of atmosphere quiz questions and answers for high school earth science tests.

Study elementary school courses, online earth science degree programs MCQs: percentage of nitrogen in air is equal to, for online courses with choices -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 student portal for online learning composition of atmosphere quiz questions, 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

B

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

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

D

MCQ: Mixture of gases around us is regarded as

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

B