A condition in which soil has lost nutrients and becomes nearly useless for farming is called what?

• A. Irrigation
• B. Soil Exhaustion
• C. Fertilizer
• D. Manure

Answer: (B)

This question tests understanding of soil fertility and nutrient depletion in farming. When crops remove nutrients from the soil and there isn’t enough replenishment, the soil gradually loses its ability to support healthy growth. Over time this leads to a state where the soil is exhausted of its useful nutrients and yields drop, effectively becoming nearly useless for farming. That condition is described as soil exhaustion.

Irrigation involves adding water to the soil, and while improper irrigation can harm crops, it doesn’t by itself describe a nutrient-depleted soil. Fertilizer and manure are inputs that add nutrients back into the soil, helping to restore fertility rather than describe its loss.