In a debate, when a speaker uses ethos to persuade the audience, the speaker is using tone to support the claim. building credibility to support the claim. appealing to emotions to support the claim. using logical reasoning to support the claim.

In rhetoric, ethos is one of the modes of persuasion or components of an argument, characterized by Aristotle. The ethos is the moral component, character or authority of the speaker to influence the audience. The other components are logos, use of reasoning, and pathos, use of emotion.

So the second question is correct. The speaker is building credibility to support the claim.

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)