Class 10 Chemistry MCQs (Grade 10) From Textbook

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Class 10 Chemistry MCQs – Practice Test 10 (Chapter 6)

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Environmental Chemistry I Atmosphere MCQ – Practice Test 10 PDF Download

MCQ: 46

Which of the following is an excellent heat absorber and causes global warming?

  1. chlorofluorocarbons (CFCs)
  2. methane
  3. carbon monoxide
  4. lead compounds
MCQ: 47

Which of the following is the Third layer of atmosphere as one moves upwards from the Earth's surface?

  1. troposphere
  2. stratosphere
  3. mesosphere
  4. thermosphere
MCQ: 48

Which of the following is the fourth layer of atmosphere as one moves upwards from the Earth's surface?

  1. troposphere
  2. stratosphere
  3. mesosphere
  4. thermosphere
MCQ: 49

The pH of normal rainwater is

  1. 4
  2. 5
  3. 5.6
  4. 6.6
MCQ: 50

Approximately, what percentage of water vapor is contained by the air in the tropical rain forest?

  1. 0.01
  2. 0.02
  3. 0.03
  4. 0.04

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