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. Veena Sahajwalla, a materials scientist at the University of New South Wales, believes there is a new way of solving this problem.
2. Her vision is for automated drones and robots to pick out components, put them into a small furnace and smelt them at specific temperatures to extract the metals one by one before they are sent off to manufacturers for reuse.
3. E-waste contains huge quantities of valuable metals, ceramics and plastics that could be salvaged and recycled, although currently not enough of it is.
4. She plans to build micro factories that can tease apart the tangle of materials in mobile phones, computers and other e-waste.
Sentence 3 presents the problem — that valuable materials in e-waste are not being effectively reused. This sets the context for the discussion.
Sentence 1 introduces Veena Sahajwalla and her original solution to the problem stated in Sentence 3. It must follow Sentence 3 to establish the connection properly.
Sentence 4 elaborates on Sahajwalla's strategy — the idea of building microfactories to recover valuable materials from e-waste. This directly builds on the claim made in Sentence 1.
Sentence 2 adds more detail by describing the use of drones and robots in this recovery process, extending the concept from Sentence 4.
Also, Sentences 1, 2, and 4 use pronouns like "she" and "her", which clearly refer to Sahajwalla introduced in Sentence 1. This further confirms the order must be 3 → 1 → 4 → 2.
Final Order: 3 → 1 → 4 → 2
Correct Option: (D)
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) When I ask the distinguished LGBTQ activist and writer Cherie Moraga whether she uses Latinx to refer to herself, she tells me, ‘I worked too hard for the “a” in Latina to give it up! I refer to myself as Xicana.’
(2) Of our accumulated ethnic population, only a third use Hispanic to identify themselves, a mere 14 percent use Latino, and less than 2 percent recognize Latinx.
(3) They have done this, although gender in languages is grammatical, not sociological or sexual, and found in linguistic families throughout the world, from French to Russian to Japanese.
(4) More recently, activists seeking to render our name gender neutral, out of respect for our LGBTQmembers, have devised yet another name for us: Latinx.
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) The effigy of a candidate establishes a personal link between him and the voters; the candidate does not only offer a programme for judgement, he suggests a physical climate, a set of daily choices expressed in a morphology, a way of dressing, a posture.
(2) Some candidates for Parliament adorn their electoral prospectus with a portrait; this presupposes that photography has a power to convert which must be analysed.
(3) Inasmuch as photography is an ellipse of language and a condensation of an ‘ineffable’ social whole, it constitutes an anti-intellectual weapon and tends to spirit away ‘politics’ (that is to say a body of problems and solutions) to the advantage of a ‘manner of being’, a socio-moral status.
(4) Photography tends to restore the paternalistic nature of elections, whose elitist essence has been disrupted by proportional representation and the rule of parties (The Right seems to use it more than the Left).
For any natural number $k$, let $a_k = 3^k$. The smallest natural number $m$ for which \[ (a_1)^1 \times (a_2)^2 \times \dots \times (a_{20})^{20} \;<\; a_{21} \times a_{22} \times \dots \times a_{20+m} \] is: