Critical Thinking is having the ability to think clearly and rationally, and when understanding the logical connection between ideas. And when should care because it has the ability to engage in reflective and independent thinking. Hope this helps :)
Locke is trying to say that tyranny is the exercise of power for the wrong reason, basically meaning that it is abusing ones power over someone or something
In "Poem," Rukeyser writes in a form of poetry called lyrical form and uses ordinary, everyday language.
Editing is more focused on grammar and style issues where revision is more a holistic and continual process.
Hope this helps.