(1) what is the independent variable (iv) of the experiment to keep warm or cool? answer? (2) explain why that is the iv for this experiment. answer?

This is not English, it is Science.

I cannot tell you the independent variable as you are not telling me what you did in the experiment. Sorry kiddo, maybe include context?

- "a nonrestrictive clause functions as a modifier to a noun (that is an object, person or concept). these clauses can be described by the following three options: it is set off by comas, it contains a subject and a verbs and it adds nonessential information to the sentence.

for example, in "here is bill gates, who confounded microsoft software company" we can identify "who confounded microsoft software company" as a nonrestrictive clause modifying the noun bill gates. this clause can be describes as a nonrestrictive clause because it is separated by a comma, it adds nonessential information to identify who bill gates is and it must contain both a subject (who) and a verb (confounded)."