If a chemical cleaner has not been identified properly, and you do not know what it is, you should -use a test kit to identity it
-discard it
-compare it to other chemical -cleaner to try to identify it
-have it tested by the health department

Sarah and juan were running in the school track meet. the muscles in their arms and legs them run fast. other muscles that you cannot see were also at work. the most important muscles for this track meet were the muscles in their a) arms. b) eye. c) feet. d) heart.

What is a system which kings rulers and other wealthy individuals provided financial and other support to artists? feudalism commissions partronage all of the above !

In a paragraph of no less than 125 words, explain the single most important factor involved in advancing american classical music in the twentieth century.