Why should we use units for our numbers? Why are units important? Explain the importance of units by sharing an example of a situation that could go wrong because there are no units.

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: