Answer:
Since the founding of the country, and particularly with the end of the American Civil War, power shifted away from the states and toward the national government. The progression of federalism includes dual, state-centered, and new federalism.
Explanation:
If it's only regarding the invention of a specific dental equipment, it'll be to inform. the student is preparing to share their knowledge on the dental drill.
to persuade is usually the purpose when there's a question or an argument being raised, and in this case, it doesn't sound like anyone would be against dental drills. dental drills is also a fairly dry topic, so it's doubtful that the student would be aiming to entertain. it isn't a demonstration because the student likely isn't giving a step by step how to in regards to using a dental drill.
According to the text, social media is part of the larger media ecosystem made of: <span>paid media and owned media.
Paid and owned media are marketing strategy phrases that describe the digital marketing method.
</span>Owned media is any web property that can be controlled.<span> While paid media are paid advertising efforts.</span>
