Final answer:
Enhancements such as sewers, buildings, and roads increase the value of real estate and are considered improvements, unlike crops, which are renewable resources and not fixed land improvements.
Step-by-step explanation:
Enhancements such as sewers, buildings, and roads increase the value of real estate and are considered improvements, unlike crops, which are renewable resources and not fixed land improvements. An important characteristic of land is that it can be modified or improved, which often leads to an increase in the real estate value. Improvements that commonly increase the value of real estate include sewers, buildings, and roads. These are all examples of physical capital investments that enhance the productivity and utility of the land. Unlike these permanent or semi-permanent enhancements, crops are typically categorized under a different type of land use, since they are considered renewable natural resources and not fixed improvements on the land. While crops are an important aspect of agricultural productivity, they are not considered a real estate improvement in this context.