Question 1. An argument is sound when
it is true beyond a reasonable doubt.
there is enough support for the argument
the premise of an argument is doubtful.
the premise of a valid argument is in fact true.

Question 2. The word Since is a
conclusion indicator.
premise indicator.
probability indicator.
deduction indicator.

Question 3.The premises of good inductive arguments
are true beyond any possible doubt.
are true beyond a reasonable doubt.
support their conclusions.
neither answers nor support their conclusions.

Question 4. How would you rewrite the following claim to remedy problems of ambiguity?

Do not assume that common sense by itself solves the problem. Volunteer help requested: Come prepared to lift heavy equipment with construction helmet and work overalls.
Volunteer help requested: Use heavy equipment to lift construction helmets and work overalls.
Volunteer help requested: Lift heavy equipment with your construction helmet and work overalls.
Volunteer help requested: Use a construction helmet and work overalls to lift heavy equipment.
Volunteer help requested: Wear construction helmet and work overalls, and be prepared to lift heavy equipment

Question 5.A precising definition

takes on a special meaning in a given context.
reduces vagueness or generality.
can be used to persuade.
tell us what the word ordinarily means.