What does the green buoy signify in terms of its layout?

The green buoy is associated with the lateral system of aids to navigation, which is designed to indicate safe channels for vessels. In this system, green buoys mark the right side of the channel when entering from the sea or heading upstream. They are typically numbered with odd numbers that decrease as one moves upstream. This aids boaters in maintaining orientation and understanding their position relative to the channel and navigational aids.

Choosing odd numbers that decrease is crucial for navigation, as it helps operators ensure they are correctly following the channel and not veering off course, which could lead to dangerous situations, particularly in areas with shallow waters or obstacles. Thus, recognizing the significance of the green buoy and its numbered system is an essential component of safe boating practices.

The other options do not align with the standardized meaning of the green buoy in navigation, which is specific to the odd numbering system used to assist boaters.