Answer:
The soil is not fertile and unsuitable for agricultural use
Step-by-step explanation:
The class IVw soil is highly prone to erosion by the agents such as wind and water. They have a very poor drainage system. They are not so favorable for the cultivation of crops. The areas where the water table is shallow, it requires proper drainage pattern for the production of agricultural crops.
Thus, John carried out the soil test and determined that it belongs to the IVw class, which has certain limitations, such as the soil is not favorable for agricultural purposes as there occurs frequent erosion.