When it is important to ensure that there is no natural light in the darkroom? when developing film but not when printing photos

when printing photos but not when developing film

when both developing film and printing photos

neither when developing film nor when printing photos

when both developing film and photos

Explanation:

the answer is b. i'm positive it's that answer.

c, d, e, f, g, a, b, and c.

sometimes western music will also use solfege. the names of these are do ra me fa sol la si (or ti) and do.

to indicate a note a half step higher or lower then the original note, you would say c # (for a half a step above c) or bb (for half a step below b)