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Class 10 Chemistry Entrance Exam: Practice Test 6 (Chapter 6)

Environmental Chemistry I Atmosphere Multiple Choice Questions (MCQ) PDF Download - 6

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Environmental Chemistry I Atmosphere MCQs with Answers PDF Download: Quiz 6

MCQ: 26

The lower layer of the thermosphere is

  1. ionosphere
  2. exosphere
  3. mesosphere
  4. stratosphere
MCQ: 27

Which of the following is true about nitrogen dioxide?

  1. it is colorless
  2. it is odourless
  3. it is soluble in water
  4. it is soluble in oxygen
MCQ: 28

What is the term used for the envelope of gases and water vapor surrounding the planet earth?

  1. air
  2. atmosphere
  3. environment
  4. biome
MCQ: 29

Which of the following has the lowest percentage in the air?

  1. krypton
  2. argon
  3. hydrogen
  4. helium
MCQ: 30

Which of the following is responsible for the rise in temperature in the stratosphere?

  1. position of stratosphere
  2. height of stratosphere
  3. ozone
  4. sunlight
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