Why is it important to indicate the wavelength of light used in your experimental data and on the Beer's Law plot?

Select all the correct statements regarding gas:   Intermolecular bonds are strongest in gases and weakest in solids. In a gas, the molecules are arranged in a 3D lattice pattern. Molecules move about at random in the gas phase. The molecules are far apart from each other, and a molecular order is nonexistent. A substance that takes the shape of its container.

Using the data below, construct a calibration curve. Include the error bars and the equation of the line and the linearity (R2) of the curve.  Calcium concentration (ppm) (X-data) Absorbance (Y-data) Run 1 Absorbance (Y-data) Run 2  Absorbance (Y-data) Run 3 0.3 1109 1069 1155 1.2 1225 1168 1233 2.1 1472 1319 1389 4.2 1497 1523 1472 8.0 1833 1898 1849 16 2066 2012 2051