Question: The five sentences (labelled 1, 2, 3, 4, 5) given in this question, when properly sequenced, from a coherent paragraph. Each sentence is labelled with a number. Decide on the proper order for the sentences and key in this sequence of five numbers as your answer.
Before plants can take life from atmosphere, nitrogen must undergo transformation similar to once that food undergoes in our digestive machinery.
In its aerial form nitrogen in insoluble , unusable and is in need of transformation.
Lightning starts the series of chemical reactions that need to happen to nitrogen, ultimately helping it nourish our earth.
Nitrogen-an essential food for plants-is an abundant resource, with about 22million tons of it floating over each square mile of earth.
One of the most dramatic examples in nature of ill wind that blows goodness is lightning.
Before we decide which sentence can start the series, we can discern two sequences – 5, 3 and 4,2. Sentence 3 follows sentence 5 as sentence 3 elaborates on how lightning, which may be considered an ill wind, blows goodness, because it starts the series of chemical reactions that ultimately help it to nourish the earth.
Similarly, sentence 2 can be deduced to follow sentence 4. Sentence 4 talks about nitrogen floating over earth and sentence 2 refers to its aerial form.
Between the 2 sequences of 5, 3 and 4, 2, one can see that 4,2 would follow 5,3 instead of the other way round as sentence 4 logically follows from sentence 3. Sentence 3 introduces nitrogen and sentence 4 elaborates on it. Also, the remaining sentence 1, coherently follows after sentence 2. This makes the sequence 5, 3, 4, 2, 1.
Hence, the correct answer is 53421.