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:)
The answer would be self discipline.
Answer:私は答えがわからない私はただポイントが必要です私を嫌いではありませんpls
Explanation:
I think it's C. Complementary