Survey related to large waterbodies is called
AHydrographic surveying
BLand surveying
CAir sun/eying
DAerial surveying
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Related Questions:
Non-rigid dams example:
It is a structure in which the canal lows over the drainage
If the length of the dam is very long and its height is low, which one would be a better choice?
It is a canal generally carries water directly from the river
A temporary enclosure built to exclude water from the working area and to permit free access to the area within during the construction must be undertaken below water level :