Answer: Because they can express a different opinion and take a different approch to it
Based on the given sentences above, the one that is punctuated correctly is the second sentence: She sends an email therefore, to her instructor and advisor. What makes the first sentence incorrect is that, it has no period at the end of the sentence. Hope this answer helps.
Answer:
What makes our heart moving? What else could it be except arts including literature? In a technology-driven world today, it is often thought that scientific subjects will be more important than arts subjects, but what makes us different from robots and machines? It is that we have feeling and emotion, and literature nurtures these mental values for us. The ultimate goal of education is not only offering us academic knowledge but also teaching us about mental responsibilities such as respect for older generation, so that students can become well-rounded citizens. If world literature is cut from school curriculum, it will be a great loss because good mental values from all around the globe will not be passed through young generation anymore.