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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

_______ is the most important gas for the survival of living organisms. - Social Science

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Question

_______ is the most important gas for the survival of living organisms.

Options

  • Helium

  • carbon-di-oxide

  • oxygen

  • methane

MCQ
Fill in the Blanks
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Solution

oxygen is the most important gas for the survival of living organisms.

shaalaa.com
Composition of the Atmosphere
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Chapter 2.03: Atmosphere - Exercises [Page 190]

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Samacheer Kalvi Social Science [English] Class 9 TN Board
Chapter 2.03 Atmosphere
Exercises | Q I. 1 | Page 190
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