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UPSC Prelims 2011Question 78Environment

Salinization occurs when the irrigation water accumulated in the soil evaporates, leaving behind salts and minerals. What are the effects of salinization on the irrigated land ?

Options

  1. (a)It greatly increases the production crop
  2. (b)It makes some soils impermeable
  3. (c)It raises the water table
  4. (d)It fills the air spaces in the soil with water

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