The proposition, "It is possible to transform Mars so that it can be inhabitable by humans," is an example of a proposition of fact.

How can presentation aids add to the effectiveness of a

persuasive speech? What will be an ideal response?

Which of the following is the strongest objection to using on-line surveys?

a. The technology used in on-line surveys often fails. b. The sample collected on-line is not likely to be representative. c. On-line surveys can be complicated to complete and therefore they are often left incomplete. d. They don’t allow participants to respond to open-ended questions.