Class 10 Chemistry MCQs - Chapter 10

The Atmosphere Trivia Questions & Answers PDF Download - 4

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The Quiz: The atmosphere consists of; "The Atmosphere" App APK Download with answers: Water vapors only; Gases only; Chemicals; Gases and water vapors; to study online courses. Practice Atmosphere Composition MCQ Questions, download Kindle eBook (Free Sample) for online certifications.

The Atmosphere Test Questions and Answers PDF Download: MCQ 4

MCQ 16:

The atmosphere consists of

gases only
water vapors only
chemicals
gases and water vapors

MCQ 17:

The atmospheric layer closest to the earth's surface is

troposphere
mesosphere
stratosphere
thermosphere

MCQ 18:

Ozone gas (O₃) has

unpleasant odor
pleasant odor
no odor
orange color

MCQ 19:

The reformation of ozone in the stratosphere is powered by

ultraviolet radiation
atmospheric oxygen
sunlight
heat

MCQ 20:

Ozone (O_?) comprises of

one oxygen atom
2 oxygen atoms
3 oxygen atoms
4 oxygen atoms

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