UPSC 2014EconomyModerate

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
Correct Answer
C
The leaf extract of this plant has the properties of anti-histamines
D
It is a source of high quality biodiesel

Explanation

Guar gum, derived from the seeds of the cluster bean, is used as a thickening agent in hydraulic fracturing (fracking) to facilitate the extraction of shale gas from deep rock formations. While many oilseeds are associated with biofuels, Guar is not a source of high-quality biodiesel, which is a role typically served by crops like Jatropha. The core concept tested is the industrial application of agricultural commodities and India’s significant role in the global supply chain for energy-related technologies.

Agriculture / BiotechnologyIndustrial uses of specific cropscluster beanGuarvegetableanimal feedbiodegradable plasticsgumshale gasleaf extractanti-histaminesbiodiesel

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