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UPSC 2011: 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?
(a)It greatly increases the crop production
(b)It makes some soils impermeable
(c)It raises the water table
(d)It fills the air spaces in the soil with water
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Not attemptedCorrect Answer: (b) It makes some soils impermeable
When salts accumulate at the soil surface they cause clay particles to disperse and clog pore spaces, making the soil crusty and virtually impermeable to water and air. It does not raise productivity (a), raise the water table (c) or saturate pore air with water (d). ([superkalam.com](https://superkalam.com/upsc-prelims/previous-year-question-paper/2011/salinization-occurs-when-the-irrigation-water-accumulated-in-the-soil-evaporates-leaving-behind-salts-and-minerals-what-17142fa0-0d1f-4b66-8455-3001dd584217?utm_source=openai))
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Frequently Asked Questions
What is the correct answer to this UPSC 2011 Geography question?▼
The correct answer is option (b): It makes some soils impermeable. Watch the detailed video explanation in our Sherlocking Prelims course on UnlockIAS.
Which year was this Physical Geography & Geomorphology question asked in UPSC Prelims?▼
This question was asked in UPSC CSE Prelims 2011, GS Paper 1, as Question 78. It falls under Geography > Physical Geography & Geomorphology.
What is the difficulty level of this UPSC question?▼
This question is rated "moderate". It requires sound conceptual understanding of the topic.
How many UPSC Prelims questions have been asked from Physical Geography & Geomorphology?▼
UPSC has asked 25 questions from Physical Geography & Geomorphology (under Geography) across multiple years. Visit the topic page to see the full list and year-wise trends.