an unknow gas is contained ina sealed container. Over time, the gas is gradually cooled until it becomes a solid. Determine which statements accurately describe the graphic representation of the cooling process. choose all of the correct answers

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: