He uses hypens to create shorter sections of sentences to make the passage seem more fast paced and tense when read
Extraneous means that something is irrelevant or something that has nothing to do with a particular subject. I hope this helps! :)
Extrinsic motivation is driven by external factors , which will make people do things to gain external benefits. Thus, the scenario that exemplifies extrinsic motivation is the fact that Lacey ran into a heated shop to warm up, when the temperature suddenly dropped. What made Lacey react in that way so that he could take shelter from the weather ? An external factor: extremely cold temperature. The other examples stand for intrinsic motivation since the drive that activates a certain behaviour in those people comes from within their own selves: not feeling like answering the door; feeling guilty and confessing ; and loving animals and volunteering for rescuing them.
