It is known for some people that English, which is now one of the most widely spoken languages in the world, maybe the only single language spoken all over the world. While it might lead to many benefits as developing the economy and trading for some countries, it might lead to the disappearance of other languages and affect countries' economy which depends upon tourism as a source of income. In the following lines, both the positives and negatives will be thoroughly discussed.
The main benefits of having a single language rather than multiple languages are to aid understanding, promote learning and economic growth as it will facilitate communication among several countries. For instance, moreover, it would be easier to exchange foreign workers and thereby fill the skill gap among the countries, the trade will flourish, and thus the world will have a healthier economy.
Nevertheless, despite the merits previously mentioned, it might be a certain reason of the extinction of localism as the disappearance of the countries' language would lead to the loss of their culture and thereby that their identity. Even having an international language will ease understanding, attaining the level of fluency and accent is not available for some countries. For instance, Canada, Australia, and the US have English as their first language. However, they differ in their accent. Furthermore, this leads to the extinction of local language and local culture that have been preserved by the ancestors for a long time ago.
In conclusion, a single universal language is definitely beneficial for every country and improves the inter-country relationship among them, but it is certainly devastating for the local language and damages the local culture in future. It is supposed that maintaining a language and identity should be prioritized to ensure a rich world heritage for future generations. 
It  
is known
 for  
some
  people
 that English, which is  
now
 one of the most  
widely
 spoken  
languages
 in the  
world
, maybe the  
only
 single  
language
 spoken all over the  
world
. While it might  
lead
 to  
many
 benefits as developing the economy and trading for  
some
  countries
, it might  
lead
 to the disappearance of other  
languages
 and affect countries' economy which depends upon tourism as a source of income. In the following lines, both the positives and negatives will be  
thoroughly
 discussed.
The main benefits of having a single  
language
  rather
 than multiple  
languages
 are to aid understanding, promote learning and economic growth as it will facilitate communication among several  
countries
.  
For instance
,  
moreover
, it would be easier to exchange foreign workers and thereby fill the  
skill
 gap among the  
countries
, the trade will flourish, and  
thus
 the  
world
 will have a healthier economy. 
Nevertheless
, despite the merits previously mentioned, it might be a certain reason of the extinction of  
localism
 as the disappearance of the countries'  
language
 would  
lead
 to the loss of their culture and thereby that their identity. Even having an international  
language
 will  
ease
 understanding, attaining the level of fluency and accent is not available for  
some
  countries
.  
For instance
, Canada, Australia, and the US have English as their  
first
  language
.  
However
, they differ in their accent.  
Furthermore
, this leads to the extinction of  
local
  language
 and  
local
 culture that have  
been preserved
 by the ancestors for a long time ago. 
In conclusion
, a single universal  
language
 is definitely beneficial for every  
country
 and  
improves
 the inter-country relationship among them,  
but
 it is  
certainly
 devastating for the  
local
  language
 and damages the  
local
 culture  
in future
. It  
is supposed
 that maintaining a  
language
 and identity should  
be prioritized
 to ensure a rich  
world
 heritage for future generations.