This means that when you find a vehicle power up on the map, you must activate it. Once activated, your character will be immediately spawned inside the vehicle. The power ups will not be sticking around forever, though. DICE says that the power ups must be used within a certain time frame, or else you can't use them.
All published novels are books. All books aren't novels. A book is a collection of pages bound together or kept together as an e-copy. The pages can contain non-fiction and fiction. In fiction, they can either have a variety of short stories, or be one story. A novel is a fictional book that has more than 40k words written in it. Usually 60k or more words.
Talking about the difference between a paragraph and a passage is the same. The key difference between passage and paragraph is that a paragraph is a cluster of sentences grouped under one topic whereas a passage is an extract from a text, novel, story or even a paragraph. Both these words are abstracts of a long process which in literature is called as a writing.