The correct answer is: d) All of the above.
Soil surveys are conducted in Bihar to assess soil types and properties, determine land suitability for different uses, and guide agricultural practices.
Soil surveys are used to assess soil types and properties in order to understand the potential of the land for different uses. This information can be used to develop land use plans, identify areas that are suitable for agriculture, and select crops that are well-suited to the local climate and soil conditions.
Soil surveys are also used to determine land suitability for different uses. This information can be used to identify areas that are suitable for development, such as housing or commercial development, and areas that should be protected, such as wetlands or forests.
Soil surveys are also used to guide agricultural practices. This information can be used to select crops that are well-suited to the local climate and soil conditions, and to develop irrigation and fertilization plans.
Soil surveys are an important tool for land management and planning. They provide valuable information that can be used to make informed decisions about the use of land.