It has been observed that in many nations the 
numbersFix the agreement mistake
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  of elderly 
 are constantly proliferating. I
,Remove the comma
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   that 
 trend 
haveChange the verb form
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  more 
 on the community, which will outline in 
forthcomingCorrect article usage
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  paragraphs with reasons and examples.
To embark, there are many demerits behind rising the older generation in society. 
, 
economyAdd an article
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  of 
countryAdd an article
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  is significantly reduceChange the verb form
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 . 
 is to state that, aged 
 may not able to contribute 
intoChange preposition
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  the work as efficiently as 
youngerAdd an article
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  generation. 
, they may not able to adopt 
a Remove the article
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 modern technology to 
increasingWrong verb form
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  output and performance. 
, multinational companies based on government are not able to generate good revenue. 
, the financial 
 of 
nationAdd an article
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  is impaired; 
couriersChange noun form
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  economy decline. 
, in the USA, senior citizens are rising in numbers, which possess a threat to the nation about financial crises. 
, 
unemploymentAdd an article
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  rate is gradually 
increasesWrong verb form
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 . To elaborate on 
, as the older 
 increasingWrong verb form
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  they continue with their work till later stage of lives. 
, the cut-throat competition will take place in 
jobAdd an article
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  market. The younger 
generationAdd a verb
 isgeneration
 wasgeneration
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  not able to find 
suitableAdd an article
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   positionFix the agreement mistake
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  in organizations. 
, in 
developedAdd an article
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  nation, the 
 , it is commonly seen that owning 
toReplace the word
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  many aged 
 are continuing their 
 in 
 sixties ergo youngsters may not find vacancies. 
In conclusion, it can be commented that rising numbers of elderly can lead to 
negativelyCorrect article usage
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  impact on
  Add an article
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 overall financial development of 
communityCorrect article usage
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  and 
increasingWrong verb form
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  competition in
  Add an article
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  market.