In the past, there were no radios, mp3 players, nor iPads. However, folk music already existed. Folk music is a traditional music, usually heard in rural areas. The music was used to be passed down to descendants or other people within their small society. Like any other form of literature, folk music started through aural transmission before writing the melody and lyrics became a trend. A person would teach someone the whole music and this would be passed to another person.
The speaker in "The Tyger" is:
d. an adult
<span>If Billy believes evolution is slow and continuous, then he also believes in gradualism. Gradualism refers to the type of evolution that takes a long time to occur - as the name itself say, it all happens gradually, one segment at a time. This process is very slow, and cannot happen overnight, which is something Billy understands well.</span>