The answer is c important evidence used to defend against enemies
The primary accent in the word "precipitate" falls on the syllable "cip"
pre- 'cip -i- tate (i just divided it into syllables, not written it phoneticallly): the apostrophe shows where the accent falls.
Probably not, nothing is perfect, people will still make mistakes, the world will never be perfect so probably not.
I’m kind of slow :) so I have a hard time explaining
