How many major soil types are recognized in Indiana?

The correct answer is ten major soil types recognized in Indiana. This classification reflects the diverse geological and climatic conditions across the state that have contributed to the formation of various soil profiles. These soil types are crucial for agricultural practices and land management, affecting everything from crop selection to conservation efforts. Each major soil type possesses specific characteristics, such as texture, drainage capability, and nutrient content, which influence its suitability for different types of farming and land use.

While other options suggest fewer or greater numbers, the classification into ten major soil types best encapsulates the complexity of Indiana's soils, taking into account its varied landscapes, historical factors, and agricultural needs. Understanding these soil types is essential for farmers and land managers in making informed decisions regarding soil conservation, cultivation practices, and environmental stewardship.