Rusts are a type of fungi that can cause damage to metal. They cause the metal to become rusty and black, and it can be very difficult to remove the rust.
When you say that something is senselessly, you mean that there is no reason for it. It's like saying that something is senseless.
Babble is to speak nonsense or gibberish. Babble often happens when people are nervous or excited, and they can't stop themselves from talking.
To prolong something is to make it last longer than normal. Sometimes people prolong a fight or argument by refusing to stop.
Inefficiently is a word that is used to describe something that is not working the way that it should. When something is inefficient, it's not using all of the resources that it can use.
To transplant is to move a plant or plant part from one place to another. You can transplant a plant into a new soil or into a new container.
Hubristic is a word that describes someone who is too proud of themselves, and thinks that they are better than everyone else. This can lead to them making big mistakes.
The person is unconvinced because they don't believe that the argument or proposal is going to work. They might be unconvinced about the idea or the person who is proposing it.
To nag is to insistently ask someone to do something. Often, nagging is used to get someone to do something that they don't want to do.