Air and Atmosphere Multiple Choice Questions and Answers 12

Learn air and atmosphere multiple choice questions, grade 6 science online test 12 for elementary school degree online courses, distance learning for exam prep. Practice gas properties and air multiple choice questions (MCQs), air and atmosphere quiz questions and answers for science class for grade 6 science tests for kids.

Study elementary school science multiple choice questions (MCQs): left over gas after process of combustion is generally, for free online courses with choices argon, oxygen, nitrogen, and carbon dioxide, gas properties and air quiz for online competitive tests preparation for elementary school admission and high school admission. Free science study guide for online learning gas properties and air quiz questions to attempt multiple choice questions based test.

MCQs on Air and Atmosphere Worksheets 12 Quiz PDF Download

MCQ: Left over gas after process of combustion is generally

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


MCQ: Sphere that prevent ultraviolet rays from sun is known as

  1. exosphere
  2. troposphere
  3. atmosphere
  4. stratosphere


MCQ: In humid areas, water vapor content is

  1. higher
  2. lower
  3. constant
  4. none of them


MCQ: Percentage composition of oxygen in air is

  1. 21%
  2. 31%
  3. 41%
  4. 51%


MCQ: Air is important on earth because it has necessary components essential for life of

  1. plants
  2. animals
  3. organism
  4. plants, animals and other organisms