the answer is pressure and temperature.
the law states that for an ideal gas, the pressure of a gas is directly proportional to the absolute temperature, at constant volume.
- it can be expressed as: (pi/ ti)v = (pf /t f)v
where, pi and ti are the initial pressure and temperature, pf and t f are the final pressure and temperature
- the letter (v) is written out of the brackets means that the volume is constant..
c is the correct answer
1 because the sun changes colors