Help please!! I’m learning Newton’s laws

Which of the following is not a transverse wave? a) soundb) lightc) radiod) all of thesee) none of these

Which lists correctly orders nuclear reactions from most radioactive waste generated to least waste generated within a given period of time? o a. radioactive decay, nuclear fission, nuclear fusion o b. radioactive decay, nuclear fusion, nuclear fission o c. nuclear fusion, nuclear fission, radioactive decay o d. nuclear fission, nuclear fusion, radioactive decay

Why should the wavelength scale of spectroscope be calibrated