Final answer:
A speaker who gives an audience a series of scientific facts and statistics to support his opinion is using an appeal to logic.
Step-by-step explanation:
A speaker who gives an audience a series of scientific facts and statistics to support his opinion is using an appeal to logic. This means that the speaker is presenting rational and reasonable evidence to convince the audience of the validity of his opinion. Instead of relying on emotions or ethical considerations, the speaker is relying on logical reasoning and evidence-based arguments to support his stance. For example, if a speaker is advocating for stricter environmental regulations, they might present scientific data on pollution levels and demonstrate how these regulations can help reduce harm to the environment.
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