Answer :
A decrease in precipitation will cause the soil in that location to become impermeable because it will be so dry. Because of this, when it rains, the water will discharge and damage the topsoil.
Due to its extreme dryness, the soil will become impermeable, preventing rainwater from penetrating and instead running off the surface, causing the topsoil to disintegrate. We are informed that the region is currently experiencing significantly less precipitation than in the past. This indicates that it receives far less rainfall overall throughout time than it did in the past. However, because of the precipitation's sharp decline, the bottom soil won't receive any moisture, making it extremely dry. The little rain that does fall will only be held on the top soil as a result, which will cause the top soil to erode. This implies that it will become hard and impenetrable.
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