How does irrigation influence agricultural productivity and environmental concerns?

• A. Irrigation always reduces water use and eliminates environmental concerns.
• B. Irrigation has no effect on yields.
• C. Irrigation can dramatically boost yields but may cause water depletion, salinization, and ecosystem disruption if mismanaged.
• D. Irrigation only benefits large farms.

Answer: (C)

Irrigation provides the water crops need, boosting yields in areas with insufficient rainfall. But the amount, timing, and management of that water matter a lot: drawing more water than can be replenished depletes aquifers and reduces river flows, harming freshwater ecosystems. Repeated irrigation can leave soils salty, lowering soil quality and crop performance. Nutrients can also be washed away or runoff into waterways, causing pollution. So irrigation can dramatically boost yields, but mismanagement can lead to water depletion, salinization, and ecosystem disruption. Efficient methods like drip irrigation, precise scheduling, and soil moisture tracking help maximize production while reducing environmental costs. The other statements aren’t accurate: irrigation doesn’t always reduce water use or eliminate environmental concerns, it does affect yields, and its benefits aren’t limited to large farms.