Confidence, even of your not completEly correct, it will show that your not afraid, and will not back down, have force in your voice. Be assertive and stubborn.
Pathos
Your question makes makes little sense. You do not state your subject of the argument.
An argument is valid if the conclusion logically follows from the premises. This means that if the premises are true, the conclusion must also be true. An argument is strong if the premises provide good support for the conclusion, making it likely to be true.
An argument is inductive when it is based on probability, such as statistics. In an inductive argument, if the premises are true, the conclusion is probably true.
A valid argument is certainly stronger than an invalid argument. but an argument can be valid and still be relatively weak. Validity and strength are not the same, although they are both good features for an argument to have.
An argument is considered inductive when the conclusion is based on a series of specific observations or evidence that may support the conclusion but does not guarantee it. Inductive arguments rely on the probability of the conclusion being true rather than its certainty.
A fallacy is a flaw in reasoning that weakens the argument by introducing errors in logic or misleading information. It diverts attention from the main issue and can undermine the credibility of the debater.
it makes it weaker
That would be a moot point
literal
literal
A consensus.