Multiple choice

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?

  1. The oil extracted from seeds is used in the manufacture of biodegradable plastics.

  2. The gum made from its seeds is used in the extraction of shale gas.

  3. The leaf extract of this plant has the properties of anti-histamines.

  4. It is a source of high quality biodiesel.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Guargum is used in the “fracking” or hydraulic fracturing process used for the extraction of the shale oil gas. The fracking process involves injecting a fracturing fluid, almost always water, at high pressure, to create channels in rock formations, which allow the oil or gas to move into larger pools, from which they can be extracted.

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