Class 10 Chemistry Learning App | The Atmosphere MCQs e-Book PDF

Class 10 Chemistry MCQs (Grade 10) From Textbook

Class 10 Chemistry Competitive Exam MCQs – Practice Test 5 (Chapter 10)

The Atmosphere MCQs with Answers PDF Download – Test 5

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The Atmosphere MCQs – Practice Test 5 PDF Download

MCQ 21: The thermosphere is situated above:

  1. 12 Km
  2. 50 Km
  3. 80 Km
  4. 10 Km

MCQ 22: The upset caused in the natural balance of concentration of greenhouse gases is called:

  1. pollution
  2. global warming
  3. atmospheric poisoning
  4. earth heating

MCQ 23: The temperature variation in the stratosphere is about:

  1. −5 °C to 50 °C
  2. −5 °C to 50 °C
  3. 10 °C to 20 °C
  4. −55 °C to −5 °C

MCQ 24: The layer which protects the earth from being hit by meteoroids is:

  1. troposphere
  2. mesosphere
  3. thermosphere
  4. stratosphere

MCQ 25: Percentage of argon in the air is:

  1. 0.78
  2. 0.21
  3. 0.0093
  4. 0.0004

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