Forty percent of all children born in the united states are born to parents who aren’t married, up from 28 percent in 1990. this trend is closely tied to:

Most of the workers who laid the central pacific railroad were?

Steven spielberg's classic movie jaws was a thriller about a great white shark that terrorized tourists at a local beach. just before the shark's appearance, eerie music began playing. as the unseen shark came closer, the tempo of the music picked up. after the audience had experienced this a few times, the sound of the music triggered the emotional reaction of fear in the audience even though the shark still had not appeared. at that point, the sound of the eerie music was a: a) unconditioned response (ucr) b) conditioned response (cr) c) conditioned stimulus (cs) d) unconditioned stimulus (ucs)

What do all of the romance languages have in common? a) they are all widely used in the middle east and southeast asia. b) they can all trace their origins back to the latin alphabet and language. c) they can all trace their origins back to the egyptian alphabet and language. d) they can all trace their origins back to the sumerian alphabet and language.