Soil surveys are important for:

The correct answer is: d) All of the above

Soil surveys are important for mapping soil types, understanding soil properties, and land-use planning.

• Mapping soil types is important for understanding the distribution of different soil types in an area. This information can be used to plan for land use, agriculture, and other activities.
• Understanding soil properties is important for determining the suitability of a soil for a particular use. For example, the soil’s texture, structure, and drainage are important factors to consider when choosing a site for a building or a crop.
• Land-use planning is important for ensuring that land is used in a sustainable way. Soil surveys can provide information on the best use for a particular piece of land, taking into account the soil type, slope, and other factors.

In addition to the above, soil surveys can also be used to:

• Identify areas of soil contamination
• Monitor soil erosion
• Assess the impact of development on soil
• Manage soil resources

Overall, soil surveys are a valuable tool for understanding and managing our soil resources.