Class 10 Chemistry Certification MCQs – Practice Test 3 (Chapter 10)

The Atmosphere Quiz with Answers PDF Download – Test 3

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The Atmosphere Quiz – Practice Test 3 PDF Download

MCQ 11: The mass of atmosphere contained in the troposphere is about:

10-20%
75-80%
90-100%
50-60%

MCQ 12: The maximum amount of ozone (O₃) is present in:

troposphere
stratosphere
mesosphere
thermosphere

MCQ 13: The amount of Nitrogen (N₂) present in dry air is:

0.2
0.78
0.48
0.68

MCQ 14: Percentage of carbon dioxide in the air is:

0.78
0.21
0.0093
0.0004

MCQ 15: Percentage of helium in the air is:

0.000624
0.000524
0.000724
0.000824

Class 10 Chemistry Quiz App & e-Book – The Atmosphere Certification Guide

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