Concept:Farm surveying involves taking measurements on farmland to produce maps or plans.
Explanation:Surveying is the act of measuring distances, directions, and elevations on land.
On a farm, these measurements are used to create accurate maps and determine boundaries or layout.
It does not mean leveling for roads, sighting with a theodolite alone, or estimating soil properties.
Therefore, the correct definition is making measurements on land from which maps are drawn.
Answer:Option C — making measurements on land from which maps are drawn.