Final answer:
Water borders are less secure and easier to defend compared to land-based borders. They require more technological surveillance and are susceptible to smuggling and illegal crossings. Unlike land-based borders, water borders do not have a consistent and unchanging natural boundary.
Step-by-step explanation:
A challenge in maintaining water borders compared to land-based borders is that water borders are less secure and easier to defend compared to land-based borders.
Unlike land-based borders, water borders pose challenges in terms of surveillance and security. Land-based borders require more technological surveillance to monitor and control illegal crossings. On the other hand, water borders are more susceptible to smuggling and illegal crossings due to the difficulty of monitoring and patrolling vast stretches of open water.
Additionally, water borders do not have a consistent and unchanging natural boundary like land-based borders often do. Natural physical geographic features such as rivers, mountain ranges, and large lakes often define land-based borders, creating more predictable and stable boundaries compared to water borders.