To determine the density of a piece of glass, a forensic technician places the glass in a liquid with a density of 2.1 g/ml. the glass sinks. what should the technician do now?
a. record that the density is greater than 2.1 g/ml and stop the analysis.
b. add a liquid with a density less than 2.1 g/ml until the glass begins to float.
c. add a liquid with a density greater than 2.1 g/ml until the glass begins to float.
d. record that the density is less than 2.1 g/ml and stop the analysis.