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Nitrogen - Lightning

CAT 2017 Slot 2 · Verbal Ability & Reading Comprehension · Medium · Para Jumbles

This is a medium Verbal Ability & Reading Comprehension question from the CAT 2017 Slot 2 paper. It tests Para Jumbles. The full answer key and a step-by-step explanation are below — try it yourself first, then reveal the solution.

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The five sentences (labelled 1, 2, 3, 4 and 5) given in this question, when properly sequenced, form a coherent paragraph. Decide on the proper order for the sentences and key in this sequence of five numbers as your answer.

  1. Before plants can take life from atmosphere, nitrogen must undergo transformations similar to ones that food undergoes in our digestive machinery.
  2. In its aerial form nitrogen is insoluble, unusable and is in need of transformation.
  3. Lightning starts the series of chemical reactions that need to happen to nitrogen, ultimately helping it nourish our earth.
  4. Nitrogen - an essential food for plants - is an abundant resource, with about 22 million tons of it floating over each square mile of earth.
  5. One of the most dramatic examples in nature of ill wind that blows goodness is lightning.
Answer

53421

Explanation

Of the given sentences, 5 is the best opening statement. 5 calls lightning an example of ill wind that blows goodness; 3 explains why so. So, 3 follows 5. 3 mentions nitrogen; 4 states its importance. So, 4 follows 3. 21 is a link: 2 explains that aerial nitrogen is unusable by plants and 1 expands on this. So, 53421 is the right order.

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