(Not A Question Just A Notice) I'm going to try to answer more questions one here! But, the reason why I signed up is because I suck at math and need help with it. XD So, that's why I don't really answer questions, I just ask them-
(I know Math is one subject and has lots of different subjects, but I'm only using for Math)

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