The purpose of this passage is a) to teach about early european explorers. b) to describe a historic site and its builders. c) to tell which places to visit in north america. d) to explain how to build and preserve ancient artifacts.

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

Why does the author of lifeboat ethics choose to begin his essay with this lifeboat metaphor

"we always see things from the same angle," the boy continued. "it's much less trouble that way. besides, it makes more sense to grow down and not up. when you're very young, you can never hurt yourself falling down if you're in mid-air, and you certainly can't get into trouble for scuffing up your shoes or marking the floor if there's nothing to scuff them on and the floor is three feet away." "that's very true," thought tock, who wondered how the dogs in the family liked the arrangement. tock views what alec says through his own experiences as a dog. with time. as milo's friend. as alec’s friend.