Did Abraham Lincoln want to end slavery because he thought it was not right?

What is the central idea of paragraph 1 of the story?

Ead this sentence from the evolution of useful things.the underlined phrases indicateaaking waterproof sandpaper would allow wet sanding,which in turn would cut down on dust, and thus be a greatmprovementpassing of timea directional change of positiona cause-and-effect relationshipsequence of events.save and exitmark this and retur

What steps best a reader determine the central idea of a text ? select three options