The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. P: Intense heating of the ground creates convection currents. Q: Dust storms are caused by strong winds that travel over dry, arid land with little vegetation and pick up tiny particles such as sand, dust and other debris. R: The air over the ground becomes hot and rises and the vacuum it creates is filled by cooler winds, resulting in a storm. S: In arid areas, the storm picks up sand and loose soil, which are light and thus travel fast with it.
The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph. P: Intense heating of the ground creates convection currents. Q: Dust storms are caused by strong winds that travel over dry, arid land with little vegetation and pick up tiny particles such as sand, dust and other debris. R: The air over the ground becomes hot and rises and the vacuum it creates is filled by cooler winds, resulting in a storm. S: In arid areas, the storm picks up sand and loose soil, which are light and thus travel fast with it. Correct Answer QPRS
The passage tells us about the formation of dust storms.
The sentence P would be followed by R. Sentence R says 'The air over the ground becomes hot', which is a further elaboration of the 'intense heating of the ground' mentioned in sentence P.
Sentence R is logically followed by sentence S. Sentence S talks about 'the storm' mentioned in sentence R.
Leaving only sentence Q to be arranged. Putting sentence Q as the last sentence of the arrangement doesn't make any sense and therefore sentence Q becomes the first sentence of the arrangement. It also introduces the subject of the passage and therefore becomes the introductory sentence.
Therefore, the correct order would be QPRS.