Tamara, I have some revision suggestions for you to consider :-)
The definition of the word globalization may vary according to
from whose point of view it is observed .
- ... according to the point of the observer.
while a sociologist implies
how globalization creates a 'single world society'
- ... implies that
However, it is agreed that one of the effects of globalization is cultures being similar to each other albeit of national boundaries- While the definition of "globalization" varies according to cultural and social criteria, there is a unanimous agreement that the effects of globalization is similar across the world.
Your essay really sounds half finished. Any chance you can post the complete version soon just so we can see how it flows for the reader?