Final answer:
Graffiti is a form of street art that emerged in Western countries in the 1960s and continues to be a popular form of cultural expression today. It can be used as a form of resistance and has both artistic and political significance.
Step-by-step explanation:
Graffiti is a form of street art that emerged in Western countries in the 1960s and continues to be a popular form of cultural expression today.
It is often seen as a backdrop in movies or news stories due to its visual impact and ability to make a statement. Graffiti can be used as a form of resistance, with artists using it to raise awareness of social and political issues.
However, it is also controversial, with some viewing it as visual pollution or vandalism.