Select the correct answer from each drop-down menu.
Madison lives near the ocean. She’s formed a hypothesis that increased concentrations of salt in the air speeds the corrosion of certain metals. If Madison plans to test this hypothesis, she will have to deal with the following variables in her experiment:

dependent variable:

independent variable:

one possible confounding variable:

Who was the first musical composer?

In a painting about the horrors of war an artist shows the ruins a house. what is the subject of the painting

An eighth-grade teacher has asked you to present information to her students about how watching television can affect adolescents’ academics and behavior. what important information should you share with this audience? write an essay that will serve as the basis for the speech you will deliver to the students. include important details from the selection "television and adolescents" to support your discussion.