I need help we summer homework

What does a comparison show? (5 points) a)how two things separate b)how two things are similar c)how two things conflict d)how two things are different

Ok which of peter's lines shows that he is using personal experience to understand the reading?

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