Cave mapping serves multiple purposes, including aiding in cave exploration and navigation, documenting cave features for scientific research, creating aesthetically pleasing maps for display, and assisting in cave rescue operations.

GPS surveying is not typically used in cave mapping due to the limited signal penetration underground.

A compass is primarily used in cave mapping to determine the direction of magnetic north, which helps in orienting the map and understanding the overall layout of the cave system.

A clinometer is used in cave mapping to measure the angle of inclination of a cave passage, which helps in understanding the slope and elevation changes within the cave system.

Isometric projection is not a common type of cave map projection as it can be difficult to interpret and does not accurately represent the three-dimensional structure of a cave system.

Symbols and conventions are used in cave mapping to create a standardized and consistent representation of cave features, making it easier for cavers and researchers to understand and interpret the map.

Sinkholes are not typically depicted using symbols in cave mapping as they are surface features and not directly related to the underground cave system.

A longitudinal section in cave mapping is used to show the vertical profile of a cave passage, providing a detailed view of the elevation changes and the overall structure of the cave.

GPS surveys are not commonly used in cave mapping due to the limited signal penetration underground, making it difficult to obtain accurate measurements.

Laser scanning technology is primarily used in cave mapping because it provides highly accurate and detailed 3D representations of caves, capturing intricate features and structures that may be difficult to map using traditional methods.

Surfer is not a common software used for cave mapping as it is primarily designed for surface mapping and lacks specific features and tools tailored for cave mapping.

The primary purpose of including a legend in a cave map is to explain the symbols and conventions used in the map, ensuring that cavers and researchers can accurately interpret the map and understand the cave features represented.

1:25000 is not a common type of cave map scale as it is typically used for larger-scale regional maps rather than detailed cave maps.

A cross section in cave mapping is used to show the relationship between different cave levels, providing a detailed view of the vertical structure of the cave system and how different passages and chambers connect.

Photogrammetry is not a common type of cave mapping technique as it is typically used for creating 3D models of objects or landscapes above ground, rather than mapping underground cave systems.