Five jumbled sentences (labelled 1, 2, 3, 4, and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence out and key in the number of that sentence as your answer. 1. Pfas are a class of about 15,000 compounds most frequently used to make products water-, stain- and grease-resistant. 2. New research suggests exposure to some common perfluoroalkyl and polyfluoroalkyl substances (Pfas) cause changes to gene activity and that these changes are linked to health problems including multiple cancers, neurological disorders and autoimmune disease. 3. These Pfas compounds are dubbed “forever chemicals” because they do not naturally break down in the environment. 4. The research may also point toward other diseases potentially caused by Pfas that have not yet been identified. 5. The findings are a major step toward determining the mechanism by which the chemicals cause disease and could help doctors identify, detect and treat health problems for those exposed to Pfas before the issues advance.

The passage given below is followed by four summaries. Choose the option that best captures the essence of the passage. For millennia, in the process of opening up land for agriculture, gardens, grazing and hunting, humans have created ecological “mosaics”, or “patchworks”: lands…

The given sentence is missing in the paragraph below. Decide where it best fits among the options 1, 2, 3, or 4 indicated in the paragraph. Sentence: While taste is related to judgment, with thinkers at the time often writing, for example, about “judgments of taste” or using the…

From the passage: In [my book “Searches”], I chronicle how big technology companies have...

The author of the passage is least likely to agree with which one of the following claims?

The four sentences (labelled 1, 2, 3, and 4) given below, when properly sequenced, would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer. 1. As books age, the cellulose and lignin…

Five jumbled sentences (labelled 1, 2, 3, 4, and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence out and key in the number of that sentence as your answer. 1. Sporting a copper-coloured pixie cut an…

The four sentences (labelled 1, 2, 3, and 4) given below, when properly sequenced, would yield a coherent paragraph. Decide on the proper sequencing of the order of the sentences and key in the sequence of the four numbers as your answer. 1. ‘Literature on screen’ suggests someth…

The passage given below is followed by four summaries. Choose the option that best captures the essence of the passage. In 1903, left-wing feminist Elizabeth Magie invented The Landlord’s Game, the original version of what became Monopoly. It was designed as a powerful teaching t…

From the passage: Time and again, whenever a population [of Mexican tetra fish] was swep...

Which one of the following best explains why the “apparent inefficiency” is “unavoidable”?