What happens to our brains as we age is of crucial importance not just to science, but to public policy ___ However, this demographic time-bomb would be much less threatening if the elderly were looked upon as intelligent contributors to society, rather than as dependants in long-term decline. It is time we rethink what we mean by the ageing mind before our false assumptions result in decisions tind policies that marginalize the old or waste precious public resources to re-mediate problems that do not exist.

The idea that we get dumber as we grow older is just a myth, according to brain research that will encourage anyone old enough to know better.

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By 2030, for example, 72 million people in the US will be over 65, double the figure in 2000 and their average life expectancy will likely have edged above 20 years.

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Many of the assumptions scientists currently make about cognitive decline are seriously flawed and, for the most part, formally invalid.

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Using computer models to simulate young and old brains, Ramscar and his colleagues found they could account for the decline in test scores, simply by factoring in experience.

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The reason it becomes harder to recall an acquaintance's name as you grow older is that there are so many more of them.

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Solution

The correct option is B By 2030, for example, 72 million people in the US will be over 65, double the figure in 2000 and their average life expectancy will likely have edged above 20 years.
Option B best completes the passage.

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Q. What happens to our brains as we age is of crucial importance not just to science but to public policy. By 2030, for example, 72 million people in the US will be over 65, double the figure in 2000 and their average life expectancy will likely have edged above 20 years. However, this demographic time-bomb would be much less threatening if the elderly were looked upon as intelligent contributors to society rather than as dependants in long-term decline.

S_{1}

: Growing up means not only getting larger, but also using our sense and our brain is to become more aware of things around us.
P: Not only does he have a memory but he is able to think and reason.
Q: In this, man differs from all other animals.
R: Before we spray our roadside plants or turn sewage in to our rivers, we should pause to think what the results of our action are likely to do.
S: This is to say, he is able to plan what he is is going to do in the light of his experience before he does it.

S_{6}

: In ither words, we must develop and use our ability to reason, because the destruction or the preservation of the places in which we live depend on us.
The proper sequence should be:

Q. Which of the following best completes the passage below?
“Government” does not exist as an independent entity defining policy. Instead there exists a group of democratically elected pragmatists sensitive to the electorate, who establish policies that will result in their own re-election. Therefore, if public policy is hostile to, say, environmental concerns, it is not because of governmental perversity but because elected officials believe that ___.

Q. Today's high school students spend too much time thinking about trivial and distracting matters such as fashion. Additionally, they often dress inappropriately on school grounds, Rather than spending time writing another detailed dress policy, we should make school uniforms mandatory. If students were required to wear uniforms, it would increase a sense of community and harmony in our schools and it would instill a sense of discipline in our students. Another positive effect would be that teachers and administrators would no longer have to act as clothing police, freeing them up to focus on more important issues.
This paragraph best supports the statement that

Q. Science tells us what we can know, but what we can know is little, and if we forget how much we cannot know we become insensitive (A) / incurious (B) to many things of very great importance. Theology, on the other hand, induces a dogmatic belief that we have knowledge where in fact we have ignorance, and by doing so generates a kind of precarious (A) / impertinent (B) insolence towards the universe. Uncertainty, in the presence of vivid hopes and fears, is painful, but must be endured if we wish to live without the support of comforting fairy tales. It is not good either to forget the questions that philosophy asks, or to persuade ourselves that we have found factual (A) / indubitable (B) answers to them. To teach how to live without certainty, and yet without being paralysed by hesitation, is perhaps the chief thing that philosophy, in our age, can still do for those who study it.___

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The correct option is B By 2030, for example, 72 million people in the US will be over 65, double the figure in 2000 and their average life expectancy will likely have edged above 20 years.Option B best completes the passage.

The correct option is B By 2030, for example, 72 million people in the US will be over 65, double the figure in 2000 and their average life expectancy will likely have edged above 20 years.
Option B best completes the passage.