What is the product found in large quantities in Churu-Bikaner-Sri Ganganagar belt, which is (i) a source of environmental pollution, (ii) used for raising soil fertility, and (iii) after value addition, is used in health and building sector ?

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Q: 68 (RAS/2011)
What is the product found in large quantities in Churu-Bikaner-Sri Ganganagar belt, which is (i) a source of environmental pollution, (ii) used for raising soil fertility, and (iii) after value addition, is used in health and building sector ?

question_subject: 

Science

question_exam: 

RAS

stats: 

0,9,14,11,0,3,9

keywords: 

{'environmental pollution': [1, 0, 0, 1], 'lignite': [3, 0, 0, 0], 'sri ganganagar belt': [0, 0, 0, 1], 'limestone': [2, 0, 1, 0], 'gypsum': [0, 0, 1, 3], 'soil fertility': [1, 0, 0, 0], 'large quantities': [1, 0, 0, 2], 'product': [3, 1, 4, 10], 'churu': [1, 0, 0, 2]}