Question

Give points on Measuring if earth surface?​

Answer 1

Answer:

According to modern estimates, the surface area of the Earth is approximately 510 million square km (5.1 x 108 km2) or 196,900,000 square miles. Determining this was not only a matter of ascertaining Earth's dimensions, but also its proper shape.

Answer 2

Answer:

Global positioning system (GPS) technology measures a highly accurate three-dimensional position on Earth's surface at a precise time relative to known positions of several satellites. Information can be used to determine rates of tectonic motion, including uplift rates.

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