Question

what is ta earth's average breadth?​

Answer 1

Answer:

6,371 km

However a better “average” is usually considered to be 6,371 km with a 0.3% variability (+/- 10 km) for the following reasons. The Earth is not a perfect sphere but approximately an oblate spheroid (an ellipse rotated around its minor axis) with a larger radius at the equator than at the poles.

Explanation:

Answer 2

By volume, dry air contains 78.09% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere.

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