How do the words in italic type contribute to the tone in this section of the text? Use the RACE strategy to respond.

Avariable that is positioned between the independent variable and the dependent variable but does not interact with either to affect the relationship between them is called a variable. select one: a. moderating b. spurious c. mediating d. causal

Identify one way in which the changes during the industrial revolution can be considered a political turning point in world history

  usually, loads of more than pounds require the assistance of a second person.           a. 40   b. 20   c. 50   d. 30