What information does the spectrum give about the source of the element?

A continuous spectrum can identify elements by the presence of dark bands, and it also tells scientists how hot the object is: As the temperature goes up, the spectrum has increasing amounts of green, blue and violet colors. Relatively cool objects have a spectrum that has mostly deep red or red and yellow.

Explanation:

1. they vary with a higher number because boiling is way hotter than melting

im not exactly sure but i think its b!