Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 8th
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Earth's atmosphere contains about ______ percentage of nitrogen and oxygen. - Social Science

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MCQ
Fill in the Blanks

Earth's atmosphere contains about ______ percentage of nitrogen and oxygen.

Options

  • 78% and 21%

  • 22% and 1%

  • 21% and 0.97%

  • 10% and 20%

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Solution

Earth's atmosphere contains about 78% and 21% percentage of nitrogen and oxygen.

Concept: Introduction of Weather and Climate
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APPEARS IN

Tamil Nadu Board Samacheer Kalvi Class 8th Social Science Answers Guide
Chapter 2.2 Weather and Climate
Evaluation | Q I. 1 | Page 102
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