Surveying
The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

Pole
Equator
None of these
Horizon

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Surveying
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

By subtracting their longitudes if places are in the same hemisphere
By adding their longitudes if places are in the different hemispheres
By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
All of these

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