The passage addresses the escalating frequency and severity of heatwaves attributable to climate change, affecting various vulnerable demographics disparately. It underscores the necessity of adapting to heatwaves as a significant public policy concern. Research findings indicate that even vulnerable individuals may not recognize themselves as susceptible to extreme heat, underscoring the importance of comprehending how extreme heat is communicated. Specifically, the passage highlights the pivotal role of the news media in forewarning the populace about the potential hazards of heatwaves and their repercussions on infrastructure and society.
Option (A) implies a general significance of protection without specifically emphasizing the media's role in alerting people to the dangers of heatwaves.
Option (B) acknowledges vulnerability to heatwaves but fails to stress the media's role in alerting people, instead suggesting a broader critique of measures taken.
Option (C) effectively conveys the central focus on the substantial risk posed by heatwaves and the crucial function of the media in alerting the public to this peril.
Option (D) mentions the necessity for news stories to enhance effectiveness but does not highlight the central role of the media in alerting people to the risk of heatwaves, as the passage does.
So, the correct option is (A): Heatwaves pose an enormous risk; the media plays a pivotal role in alerting people to this danger.
The passage given below is followed by four summaries. Choose the option that best captures the essence of the passage.
In investigating memory-beliefs, there are certain points which must be borne in mind. In the first place, everything constituting a memory-belief is happening now, not in that past time to which the belief is said to refer. It is not logically necessary to the existence of a memory-belief that the event remembered should have occurred, or even that the past should have existed at all. There is no logical impossibility in the hypothesis that the world sprang into being five minutes ago, exactly as it then was, with a population that "remembered" a wholly unreal past. There is no logically necessary connection between events at different times; therefore nothing that is happening now or will happen in the future can disprove the hypothesis that the world began five minutes ago. Hence the occurrences which are CALLED knowledge of the past are logically independent of the past; they are wholly analysable into present contents, which might, theoretically, be just what they are even if no past had existed.
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: