Przykładowa odpowiedź:

1. Environmental artist is someone who is trying to use the waste and rubbish to make the works of art and send a message through his work about preserving environment.

2. Environmental art can influence people through its magnitude. Grand things amaze us, hold our attention and make us think. When people see how much can one man recycle and create beautiful thing by doing so, they will definitely try to make some of the difference themselves.

3. Trash is something useless, that's only fit to be thrown away. The speaker means that everything human society creates a large amounts of 'trash', but it's also very irrelevant and will one day perish. I think the author has a point. We, as species, will also one day turn to trash if we don't 'recycle' ourselves, change our way of living.