are often dissatisfied individuals who cannot bring about internal change and, out of a sense of commitment or frustration, take their concerns to external constituencies.

answer; first blankindependent; second blank; /(french); ///

the answer would be in this answer. someone already asked the question.  

well, there are a lot of places we get information about earth from. like science classes, websites, books, newspapers, etc.

i honestly have no idea