What is the main characteristic of lateral pivot irrigation systems?

The main characteristic of lateral pivot irrigation systems is indeed that they function similarly to wheel lines. Lateral pivot systems operate by moving along a predetermined path to irrigate crops, distributing water as they travel across the field. This method offers flexibility in coverage and can be effectively used on various types of terrain, much like wheel lines that also transport water while moving across fields.

While the other options present certain limitations or inaccuracies regarding lateral pivot irrigation systems, the comparison to wheel lines highlights the mobile nature of the irrigation method, where the system itself travels across the field rather than remaining stationary. This movement allows for consistent water distribution over a broader area and can enhance efficiency in water usage and crop irrigation.