Answer:
Dondi was a famous American graffiti artist who painted on subway cars and walls in New York City in the late 1970s and early 1980s. Graffiti is a form of art that is often temporary and illegal, as it can be removed or painted over by authorities or other artists. Therefore, graffiti can be considered ephemeral, meaning lasting for a very short time. One piece of evidence that illustrates the ephemeral nature of Dondi’s graffiti is his most famous work, Children of the Grave Parts, which were three whole cars on the New York City Subway that he painted in 1978-1980. These pieces were only visible to the public for a limited time before they were either cleaned or replaced by new cars. Another piece of evidence is that Dondi had to adopt a pseudonym and paint at night to avoid being caught by the police or the Metropolitan Transportation Authority, who were trying to crack down on graffiti writers. This shows that graffiti was not accepted or appreciated by the authorities, and that Dondi had to risk his safety and freedom to create his art.