Answer:
They created harmful inks that were considered toxic.
It also contributed to environmental pollution
Explanation:
I think they invented inks that weren't harmful and they removed these waste that were harmful to the environment.
Hope this helps:)
Answer:
Determine size (by counting lines and spaces between the notes)
Determine if the top note is in the major scale of the bottom note.
If it is: the interval is perfect (if it is a unison, fourth, fifth, or octave) or it is major (if it is a second, third, sixth, or seventh)
For what question do you need it?
