The first sentence, ‘My cat’s favorite pastime seems to be sleeping’.
A gerund is when a vets is used as a noun.
Future tip: gerunds most always end in ‘ing’.
Hope this helps.
The Literary device is PATHOS. It is a method of persuasion and convincing the audience with an argument that appeal to the emotions and feelings. In this particular statement, the author attempts to persuade the audience to get involve into the recycling program actively by appealing to their emotions and feelings towards the environment.
I think it would not make a difference as you can learn the same things.