Which object can typically be seen at maximum visibility distances?

The correct choice is that a distinct landmark can typically be seen at maximum visibility distances. Distinct landmarks are usually prominent features in the landscape, such as tall buildings, mountains, or unique natural formations. Their height, size, and contrasting colors often make them more visible from a distance compared to other objects.

Ground objects, while they may also be visible, are often limited by factors such as terrain and vegetation that can obstruct the view. Sky objects, such as weather phenomena or celestial bodies, may be visible at great distances, but they can be influenced by atmospheric conditions that affect their clarity, such as haze or cloud cover.

The distinctive nature of landmarks ensures that they stand out against the surrounding environment, making them more easily recognizable and visible over longer distances. This quality makes them reliable references for determining visibility in weather observation.