A light with a second-order dark band forms a diffraction angle of 20.0°. The diffraction grating has 200.0 lines per nm The wavelength of the light, to the nearest whole number, is nm. ,

Answerit increases at a steady rate;

Don't smoke.it ruins your life.confront your husband on how you are feeling and why you're depressed.weed is never the answer.there are so many more options out there for depression.weed will make the depression worse.so, stay clean and you will have support

The correct answer is  ait's a process by which rocks and minerals undergo in their composition^o^