Q: In India, cluster bean (Guar) is traditionally used as a vegetable or animal feed, but recently the cultivation of this has assumed significance. Which one of the following statements is correct in this context?
a) The oil extracted from seeds is used in the manufacture of biodegradable plastics b) The gum made from its seeds is used in the extraction of shale gas c) The leaf extract of this plant has the properties of anti-histamines d) It is a source of high quality biodiesel
The Correct Answer is Option 2.
Guar gum
It is used in hydraulic fracturing technology during shale gas extraction.
Synthetized from a small bean named guar, guar gum is an organic substance used to increase the viscosity of hydraulic fracturing fluids, which makes hydraulic fracturing more effective by improving the results of the pressure pumping of fluids to the fractures made to the reservoir rocks.
It is native to India and is widely grown in dry, warm, and arid regions.
It is a source of Guar gum. Guar gum is derived from guar seeds, a legume crop that grows in semi-arid regions of Rajasthan, Gujarat and Haryana.
It is traditionally used as a vegetable or animal feed. The gum made from its seeds is used in the extraction of shale gas. Hence, option 2 is correct.
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