What kind of information is provided by a soil map?

A soil map provides critical information regarding the distribution of various soil types and their characteristics across a specific area. This includes details about soil texture, pH levels, drainage capabilities, and other attributes that affect land usage, agricultural practices, and environmental assessments. Understanding the diverse soil types is essential for effective land management, including the installation of septic systems, as it informs decisions on site selection, system design, and maintenance requirements.

The other options focus on elements that are not represented in a soil map, such as market prices, agricultural techniques, or demographic data, which are not the primary purpose or function of a soil map.