What land type is considered difficult to use for human purposes?

Wetlands and deserts are considered difficult to use for human purposes due to their unique environmental characteristics and limitations. Wetlands, which are areas where water covers the soil for at least part of the year, can pose challenges for construction and agriculture because of high moisture levels and potential flooding. Additionally, they often serve important ecological functions, such as filtering water and providing habitat for various species, which can restrict their use for human development.

Deserts, on the other hand, are characterized by low rainfall and extreme temperatures, making them less suitable for traditional agriculture and habitation. The scarcity of water in deserts limits the types of crops that can grow, and the harsh conditions can make infrastructure development difficult.

While cropland, rangeland, and urban land have been adapted for various human activities, wetlands and deserts retain characteristics that inherently limit their usability, thus making them challenging for widespread human use and development.